Journal of Pathology and Translational Medicine

Original Articles

The significance of papillary architecture in the follow-up biopsies of patients with progestin-treated atypical endometrial hyperplasia: Wangpan J. Shi, Oluwole Fadare; J Pathol Transl Med. 2026;60(1):58-68. Published online January 8, 2026; DOI: https://doi.org/10.4132/jptm.2025.09.12

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Abstract PDF: Background
Follow-up biopsies in patients with progestin-treated atypical endometrial hyperplasia/endometrioid intraepithelial neoplasia (AH/EIN) may show papillary structures, the significance of which is unclear. Methods: The authors reviewed 253 serial specimens of 84 consecutive patients diagnosed with AH/EIN, inclusive of each patient's pre-progestin treatment sample and all post-treatment specimens. We assessed the predictive relationship between papillary architecture in a post-treatment biopsy and two study outcomes: AH/EIN or carcinoma in at least one sample subsequent to the one in which papillae were identified, and/or the last specimen received for that patient. Results: Papillae were identified in only 51.5% of pre-treatment samples but were present in at least one subsequent post-treatment sample for all patients. Post-treatment samples that exhibited papillae and no glandular crowding were associated with AH/EIN in at least one subsequent specimen in 39.7% (29/73) of cases, compared to 24.0% (6/25) in samples with neither papillae nor glandular crowding (p = .227) and 64.0% (16/25) in samples with concurrent gland crowding and papillae (p = .048). Univariate logistic regression analyses showed that the presence of papillae was not associated with study outcomes (odds ratio [OR], 0.99; 95% confidence interval [CI], 0.49 to 1.99; p = .985), as compared with gland crowding (OR, 1.54; 95% CI, 1.04 to 2.27; p = .031), or concurrent papillae and gland crowding (OR, 2.36; 95% CI, 1.01 to 5.52; p = .048). Conclusions: In post-treatment samples of progestin-treated AH/EIN, the presence of papillary architecture was not demonstrably associated with study outcomes independent of gland crowding, although the concurrent presence of both features may be significantly predictive.

Diagnostic value of cytology in detecting human papillomavirus–independent cervical malignancies: a nation-wide study in Korea: Hye-Ra Jung, Junyoung Shin, Chong Woo Yoo, Eun Na Kim, Cheol Lee, Kyeongmin Kim, Ho-chang Lee, Yonghee Lee, Ji Hye Kim, Soo Jin Jung, Yumin Chung, Joo Yeon Kim, Hye Eun Park, Tae Hoen Kim, Wonae Lee, Min-Sun Cho, Ran Hong, Yoon Jung Choi, Younghee Choi, Young Sub Lee, Sang-Ryung Lee, Myunghee Kang, Young Jin Seo, Seung-Sook Lee, Yoon-Jung Hwang, Hyun-Jung Kim; J Pathol Transl Med. 2025;59(6):444-452. Published online November 11, 2025; DOI: https://doi.org/10.4132/jptm.2025.10.21

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Abstract PDF: Background
Human papillomavirus (HPV) independent cervical malignancies (HPV-IDCMs) have recently been classified by the World Health Organization (WHO) 5th edition. These malignancies have historically received limited attention due to their rarity and the potential for evasion of HPV-based screening.
Methods
We retrospectively reviewed 5,854 biopsy-confirmed cervical malignancies from 22 institutions over 3 years (July 2020–June 2023). Histologic classification followed the WHO guidelines. HPV independence was confirmed by dual negativity for p16 and HPV; discordant cases (p16-positive/HPV-negative) underwent additional HPV testing using paraffin-embedded tissue. Cytological results were matched sequentially to histological confirmation.
Results
The prevalence of HPV-IDCM was 4.4% (257/5,854) overall and was 3.6% (208/5,805 cases) among primary cervical malignancy. Patient age of HPV-IDCM was 29 to 89 years (median, 57.79). Its histologic subtypes included primary adenocarcinoma (n = 116), endometrial adenocarcinoma (n = 35), squamous cell carcinoma (n = 72), metastatic carcinoma (n = 14), carcinoma, not otherwise specified (n = 10), neuroendocrine carcinoma (n = 3), and others (n = 7). Among 155 cytology-histological matched cases, the overall and primary Pap test detection rates were 85.2% (132/155) and 83.2% (104/125), respectively. The interval between cytology and histologic confirmation extended up to 38 months.
Conclusions
HPV-IDCMs comprised 3.6% of primary cervical malignancies with a high detection rate via cytology (83.2%). These findings affirm the value of cytological screening, particularly in patients with limited screening history or at risk for HPV-independent lesions, and may guide future screening protocols.

Low Ki-67 labeling index is a clinically useful predictive factor for recurrence-free survival in patients with papillary thyroid carcinoma: Takashi Masui, Katsunari Yane, Ichiro Ota, Kennichi Kakudo, Tomoko Wakasa, Satoru Koike, Hirotaka Kinugawa, Ryuji Yasumatsu, Tadashi Kitahara; J Pathol Transl Med. 2025;59(2):115-124. Published online February 18, 2025; DOI: https://doi.org/10.4132/jptm.2024.11.08

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Abstract PDF

Background
We report a new risk stratification of invasive stage papillary thyroid carcinomas (PTCs) by combining invasive status, using extrathyroid invasion (Ex) status, and tumor growth speed using the Ki-67 labeling index (LI). Methods: We examined tumor recurrence in 167 patients with PTC who were surgically treated at the Kindai University Nara Hospital between 2010 and 2022. The patients were classified according to the degree of invasion [negative (Ex0) or positive (Ex1, Ex2, and Ex3)] and tumor growth speed expressed with Ki-67 LI, as low (<5%) or high (>5%). This study confirmed previous findings that the disease-free survival (DFS) rate in PTCs significantly differed between patients with a high and low Ki-67 index. Results: When combining Ex status (negative or positive) and Ki-67 proliferation status (low or high), the DFS rate of invasion in the negative, low Ki-67 LI group was only 1.1%, while that of invasion in the positive, high Ki-67 LI was 44.1%. This study reports for the first time that recurrence risks can be stratified accurately when combining carcinoma’s essential two features of extrathyroid invasion status and tumor growth speed. Conclusions: We believe the evidence for low tumor recurrence risk may contribute to use of more conservative treatment options for invasive-stage PTCs and help alleviate patient anxiety about tumor recurrence and death.

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Research Progress on the Correlation between Three Biomarkers, Ki-67, CAIX and VEGF and Clear Cell Renal Cell Carcinoma
锦容马
Advances in Clinical Medicine.2025; 15(09): 326. CrossRef
Immunophenotypic Panel for Comprehensive Characterization of Aggressive Thyroid Carcinomas
Mihail Ceausu, Mihai Alin Publik, Dana Terzea, Carmen Adina Cristea, Dumitru Ioachim, Dana Manda, Sorina Schipor
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High Ki-67 labeling index correlates with aggressive clinicopathological features in papillary thyroid carcinoma: a retrospective study
Defi Nurlia Erdian, Maria Francisca Ham, Dina Khoirunnisa, Agnes Stephanie Harahap
Thyroid Research.2025;[Epub] CrossRef

Reviews

Cervical intraepithelial neoplasia and cervical cytology in pregnancy: Ji-Young Kim, Jeong Yun Shim; J Pathol Transl Med. 2024;58(6):283-290. Published online November 7, 2024; DOI: https://doi.org/10.4132/jptm.2024.10.17

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Abstract PDF

Cervical cancer screening during pregnancy presents unique challenges for cytologic interpretation. This review focuses on pregnancy-associated cytomorphological changes and their impact on diagnosis of cervical intraepithelial neoplasia (CIN) and cervical cancer. Pregnancy-induced alterations include navicular cells, hyperplastic endocervical cells, immature metaplastic cells, and occasional decidual cells or trophoblasts. These changes can mimic abnormalities such as koilocytosis, adenocarcinoma in situ, and high-grade squamous intraepithelial lesions, potentially leading to misdiagnosis. Careful attention to nuclear features and awareness of pregnancy-related changes are crucial for correct interpretation. The natural history of CIN during pregnancy shows higher regression rates, particularly for CIN 2, with minimal risk of progression. Management of abnormal cytology follows modified risk-based guidelines to avoid invasive procedures, with treatment typically deferred until postpartum. The findings reported in this review emphasize the importance of considering pregnancy status in cytological interpretation, highlight potential problems, and provide guidance on differentiating benign pregnancy-related changes from true abnormalities. Understanding these nuances is essential for accurate diagnosis and proper management of cervical abnormalities in pregnant women.

Citations

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The significance of biological samples from pregnant women in cervical intraepithelial neoplasia
Xue Mi, Maharjan Rashmi, Zangyu Pan, Di Wu, Jinwei Miao
Frontiers in Medicine.2025;[Epub] CrossRef
Oncologic and pregnancy outcomes of cervical high-grade intraepithelial lesions and delivery mode
Olga P. Matylevich, Ilya A. Tarasau, Sviatlana Y. Shelkovich, Aliaksandr F. Martsinkevich
Academia Oncology.2025;[Epub] CrossRef

Cytologic hallmarks and differential diagnosis of papillary thyroid carcinoma subtypes: Agnes Stephanie Harahap, Chan Kwon Jung; J Pathol Transl Med. 2024;58(6):265-282. Published online November 7, 2024; DOI: https://doi.org/10.4132/jptm.2024.10.11

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Abstract PDF

Papillary thyroid carcinoma (PTC) is the most common thyroid malignancy, characterized by a range of subtypes that differ in their cytologic features, clinical behavior, and prognosis. Accurate cytologic evaluation of PTC using fine-needle aspiration is essential but can be challenging due to the morphologic diversity among subtypes. This review focuses on the distinct cytologic characteristics of various PTC subtypes, including the classic type, follicular variant, tall cell, columnar cell, hobnail, diffuse sclerosing, Warthin-like, solid/trabecular, and oncocytic PTCs. Each subtype demonstrates unique nuclear features, architectural patterns, and background elements essential for diagnosis and differentiation from other thyroid lesions. Recognizing these distinct cytologic patterns is essential for identifying aggressive subtypes like tall cell, hobnail, and columnar cell PTCs, which have a higher risk of recurrence, metastasis, and poorer clinical outcomes. Additionally, rare subtypes such as diffuse sclerosing and Warthin-like PTCs present unique cytologic profiles that must be carefully interpreted to avoid diagnostic errors. The review also highlights the cytologic indicators of lymph node metastasis and high-grade features, such as differentiated high-grade thyroid carcinoma. The integration of molecular testing can further refine subtype diagnosis by identifying specific genetic mutations. A thorough understanding of these subtype-specific cytologic features and molecular profiles is vital for accurate diagnosis, risk stratification, and personalized management of PTC patients. Future improvements in diagnostic techniques and standardization are needed to enhance cytologic evaluation and clinical decision-making in thyroid cancer.

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Oncocytic Thyroid Tumours With Pathogenic FLCN Mutations Mimic Oncocytic Papillary Thyroid Carcinoma on Fine‐Needle Aspiration
Adeel M. Ashraf, Faisal Hassan, Adrian A. Dawkins, Julie C. Dueber, Derek B. Allison, Thèrése J. Bocklage
Cytopathology.2026; 37(1): 108. CrossRef
Using a new type of visible light-based emission fluorescence microscope to identify the benign and malignant nature of thyroid tissue during the surgical process: Analysis of diagnostic results
Yu Miao, Liu Xiaowei, Li Muyang, Gao Jian, Chen Lu
Photodiagnosis and Photodynamic Therapy.2026; 57: 105324. CrossRef
Clinical Behavior of Aggressive Variants of Papillary Thyroid Carcinoma: A Retrospective Case–Control Study
Jovan Ilic, Nikola Slijepcevic, Katarina Tausanovic, Bozidar Odalovic, Goran Zoric, Marija Milinkovic, Branislav Rovcanin, Milan Jovanovic, Matija Buzejic, Duska Vucen, Boban Stepanovic, Sara Ivanis, Milan Parezanovic, Milan Marinkovic, Vladan Zivaljevic
Cancers.2026; 18(2): 345. CrossRef
Nuclear pseudoinclusion is associated with BRAFV600E mutation: Analysis of nuclear features in papillary thyroid carcinoma
Agnes Stephanie Harahap, Dina Khoirunnisa, Salinah, Maria Francisca Ham
Annals of Diagnostic Pathology.2025; 75: 152434. CrossRef
2025 Korean Thyroid Association Clinical Management Guideline on Active Surveillance for Low-Risk Papillary Thyroid Carcinoma
Eun Kyung Lee, Min Joo Kim, Seung Heon Kang, Bon Seok Koo, Kyungsik Kim, Mijin Kim, Bo Hyun Kim, Ji-hoon Kim, Shin Je Moon, Kyorim Back, Young Shin Song, Jong-hyuk Ahn, Hwa Young Ahn, Ho-Ryun Won, Won Sang Yoo, Min Kyoung Lee, Jeongmin Lee, Ji Ye Lee, Kyo
International Journal of Thyroidology.2025; 18(1): 30. CrossRef
Structure-based molecular screening and dynamic simulation of phytocompounds targeting VEGFR-2: a novel therapeutic approach for papillary thyroid carcinoma
Shuai Wang, Lingqian Zhang, Wenjun Zhang, Xiong Zeng, Jie Mei, Weidong Xiao, Lijie Yang
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2025 Korean Thyroid Association Clinical Management Guideline on Active Surveillance for Low-Risk Papillary Thyroid Carcinoma
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A Case of Warthin-Like Variant of Papillary Thyroid Cancer
Amy Chow, Israa Laklouk
Cureus.2025;[Epub] CrossRef
Propensity score-matched analysis of the ‘2+2’ parathyroid strategy in total thyroidectomy with central neck dissection
Hao Gong, Simei Yao, Tianyuchen Jiang, Yi Yang, Yuhan Jiang, Zhujuan Wu, Anping Su
Frontiers in Endocrinology.2025;[Epub] CrossRef
Cytological Findings in Pediatric Thoracic Tumors: A Review of Diagnostic Insights and Pitfalls
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Acta Cytologica.2025; : 1. CrossRef

Original Articles

TERT mutations and aggressive histopathologic characteristics of radioiodine-refractory papillary thyroid cancer: Ju Yeon Pyo, Yoon Jin Cha, SoonWon Hong; J Pathol Transl Med. 2024;58(6):310-320. Published online September 12, 2024; DOI: https://doi.org/10.4132/jptm.2024.07.29

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Abstract PDF

Background
Radioiodine (RI) ablation following thyroid-stimulating hormone suppression is an effective treatment for papillary thyroid cancer (PTC), typically leading to favorable outcomes. However, RI-refractory tumors exhibit aggressive behavior and poor prognoses. Recent studies highlight the role of genetic abnormalities in PTC signaling pathways, including the activation of telomerase reverse transcriptase (TERT), and the correlation of mutations with adverse outcomes.
Methods
This study analyzed mutations in BRAF V600E and the TERT-promoter genes, comparing clinicopathological features between RI-refractory and RI-responsive PTCs. Among 82 RI-refractory patients, formalin-fixed, paraffin-embedded tissues from initial surgeries were available for 26. Another 89 without distant metastasis over 5 years formed a matched RI-responsive control group.
Results
Histopathologically, RI-refractory PTCs showed increased frequencies of small tumor clusters without fibrovascular cores, hobnail features, and a high height-to-width ratio of tumor cells. These tumors were more likely to exhibit necrosis, mitosis, lymph node metastasis, extrathyroidal extension, and involvement of resection margins. TERT-promoter mutations were statistically significantly associated with these aggressive clinicopathologic features. Immunohistochemically, decreased expression of sodium iodide symporter and thyroglobulin stimulating hormone receptor proteins was common in RI-refractory PTCs, along with lower levels of oncogenic proteins such as vascular endothelial cell growth factor, vascular endothelial cell growth factor receptor 2, and nuclear factor kappa-light-chain-enhancer of activated B cells. Total loss of PTEN expression was occasionally observed. In contrast, all cases tested positive for cytoplasmic β-catenin.
Conclusions
RI-refractory PTCs are linked to TERT mutations and exhibit specific aggressive histopathologic features, particularly in tumor centers.

Citations

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Characterizing thyroid carcinomas in the elderly: Histological subtypes and TERT promoter mutation analysis based on the latest WHO classification
Myoung Ju Koh, Songmi Noh, Jin Kyong Kim, Gi Jeong Kim
Annals of Diagnostic Pathology.2026; 80: 152578. CrossRef
Insulin resistance and metabolic dysfunction in thyroid nodules and differentiated thyroid cancer
Stefano Iuliano, Maria Mirabelli, Stefania Giuliano, Antonio Brunetti
Current Opinion in Oncology.2026; 38(1): 1. CrossRef
Differentiated high-grade thyroid carcinoma (DHGTC): clinicopathological analysis of a new entity in a chilean center
Marlín Solórzano, Ignacio Fuentes, José Miguel González, Nicole Lustig, Lorena Mosso, Joel Falcón, Catalina Ruiz, Joaquín Viñambres, Rodolfo Cabello, Hernán González, Pablo H Montero, Francisco Cruz, Rodrigo Jaimovich, Juan Carlos Quintana, Antonieta Sola
Endocrine.2026;[Epub] CrossRef
Characteristics and outcome of pediatric and adult differentiated thyroid cancer with distant metastases
Ali S. Alzahrani, Lulu Alobaid, Eman Albasri, Afnan Hadadi, Abdulrhman Hakami, Fayha Abothenain, Deema Alturki, Najla Ewain, Ali Howaidi, Hindi Alhindi, Ghada Alskait, Yasser Aljufan, Shatha Alghaihb, Azzam Alkhalifah, Leenah AlAyoubi, Amani Abualnaja
Frontiers in Endocrinology.2026;[Epub] CrossRef
The ability of anexelekto (AXL) expression and TERT promoter mutation to predict radioiodine-refractory differentiated thyroid carcinoma
Hasrayati Agustina, Tutik Nur Ayni, Yohana Azhar, Erwin Affandi Soeriadi, Bethy Suryawathy Hernowo
Diagnostic Pathology.2025;[Epub] CrossRef
Clinicopathologic characteristics of papillary thyroid carcinoma, tall cell subtype and subtype with tall cell features, an institutional experience
Xueting Jin, Shunsuke Koga, Xiao Zhou, Niaz Z. Khan, Zubair W. Baloch
Human Pathology.2025; 161: 105867. CrossRef
Calcifying nested stromal-epithelial tumor of the liver: Report of two cases revealing novel WT1 mutation and distinct epigenetic features
Andrea Strakova-Peterikova, Franco Fedeli, Boris Rychly, Jiri Soukup, Michael Michal, Petr Martinek, Marian Grendar, Elaheh Mosaieby, Nikola Ptakova, Maryna Slisarenko, Michal Michal, Kvetoslava Michalova
Virchows Archiv.2025;[Epub] CrossRef

Diagnostic challenges in the assessment of thyroid neoplasms using nuclear features and vascular and capsular invasion: a multi-center interobserver agreement study: Agnes Stephanie Harahap, Mutiah Mutmainnah, Maria Francisca Ham, Dina Khoirunnisa, Abdillah Hasbi Assadyk, Husni Cangara, Aswiyanti Asri, Diah Prabawati Retnani, Fairuz Quzwain, Hasrayati Agustina, Hermawan Istiadi, Indri Windarti, Krisna Murti, Muhammad Takbir, Ni Made Mahastuti, Nila Kurniasari, Nungki Anggorowati, Pamela Abineno, Yulita Pundewi Setyorini, Kennichi Kakudo; J Pathol Transl Med. 2024;58(6):299-309. Published online September 12, 2024; DOI: https://doi.org/10.4132/jptm.2024.07.25; Correction in: J Pathol Transl Med 2025;59(3):201

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Abstract PDF Supplementary Material

Background
The diagnosis of thyroid neoplasms necessitates the identification of distinct histological features. Various education/hospital centers located in cities across Indonesia likely result in discordances among pathologists when diagnosing thyroid neoplasms.
Methods
This study examined the concordance among Indonesian pathologists in assessing nuclear features and capsular and vascular invasion of thyroid tumors. Fifteen pathologists from different centers independently assessed the same 14 digital slides of thyroid tumor specimens. All the specimens were thyroid neoplasms with known BRAFV600E and RAS mutational status, from a single center. We evaluated the pre- and post-training agreement using the Fleiss kappa. The significance of the training was evaluated using a paired T-test.
Results
Baseline agreement on nuclear features was slight to fair based on a 3-point scoring system (k = 0.14 to 0.28) and poor to fair based on an eight-point system (k = –0.02 to 0.24). Agreements on vascular (κ = 0.35) and capsular invasion (κ = 0.27) were fair, whereas the estimated molecular type showed substantial agreement (κ = 0.74). Following the training, agreement using the eight-point system significantly improved (p = 0.001).
Conclusions
The level of concordance among Indonesian pathologists in diagnosing thyroid neoplasm was relatively poor. Consensus in pathology assessment requires ongoing collaboration and education to refine diagnostic criteria.

Citations

Citations to this article as recorded by

Nuclear pseudoinclusion is associated with BRAFV600E mutation: Analysis of nuclear features in papillary thyroid carcinoma
Agnes Stephanie Harahap, Dina Khoirunnisa, Salinah, Maria Francisca Ham
Annals of Diagnostic Pathology.2025; 75: 152434. CrossRef

Clinicopathologic characterization of cervical metastasis from an unknown primary tumor: a multicenter study in Korea: Miseon Lee, Uiree Jo, Joon Seon Song, Youn Soo Lee, Chang Gok Woo, Dong-Hoon Kim, Jung Yeon Kim, Sun Och Yoon, Kyung-Ja Cho; J Pathol Transl Med. 2023;57(3):166-177. Published online May 10, 2023; DOI: https://doi.org/10.4132/jptm.2023.04.12

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Background
Research regarding cervical metastasis from an unknown primary tumor (CUP) according to human papillomavirus (HPV) and Epstein-Barr virus (EBV) status in Korea has been sporadic and small-scale. This study aims to analyze and understand the characteristics of CUP in Korea according to viral and p16 and p53 status through a multicenter study.
Methods
Ninety-five cases of CUP retrieved from six hospitals in Korea between January 2006 and December 2016 were subjected to high-risk HPV detection (DNA in situ hybridization [ISH] or real-time polymerase chain reaction), EBV detection (ISH), and immunohistochemistry for p16 and p53.
Results
CUP was HPV-related in 37 cases (38.9%), EBV-related in five cases (5.3%), and unrelated to HPV or EBV in 46 cases (48.4%). HPV-related CUP cases had the best overall survival (OS) (p = .004). According to the multivariate analysis, virus-unrelated disease (p = .023) and longer smoking duration (p < .005) were prognostic factors for poor OS. Cystic change (p = .016) and basaloid pattern (p < .001) were more frequent in HPV-related cases, and lymphoepithelial lesion was frequent in EBV-related cases (p = .010). There was no significant association between viral status and p53 positivity (p = .341), smoking status (p = .728), or smoking duration (p = .187). Korean data differ from Western data in the absence of an association among HPV, p53 positivity, and smoking history.
Conclusions
Virus-unrelated CUP in Korea had the highest frequency among all CUP cases. HPV-related CUP is similar to HPV-mediated oropharyngeal cancer and EBVrelated CUP is similar to nasopharyngeal cancer in terms of characteristics, respectively.

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Management of squamous cell carcinoma of unknown primary in the head and neck: current evidence-based diagnostic and treatment strategies
Marcel Kloppenburg, Matthias Santer, Lukas Schmutzler, Felix Johnson, Benedikt Hofauer, Teresa Steinbichler
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Christina Sauter, Matthias Sand, Karim Plath, Michaela Maria Plath
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Unlocking the Hidden: Advancing Imaging Techniques in Diagnosing Cancers of Unknown Primary in the Head and Neck Region
Daniela Messineo, Filippo Valentini, Giovanni Francesco Niccolini, Federica Zoccali, Francesca Ripari, Enrico Marotta, Marcello Caratozzolo, Pasquale Frisina
Applied Sciences.2025; 15(4): 2194. CrossRef
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Sangjoon Choi, Gyuheon Choi, Hee Jin Lee, Joon Seon Song, Yoon Se Lee, Seung-Ho Choi, Kyung-Ja Cho
Journal of Pathology and Translational Medicine.2025; 59(6): 361. CrossRef
Expansion of tumor-infiltrating lymphocytes from head and neck squamous cell carcinoma to assess the potential of adoptive cell therapy
Sangjoon Choi, Mofazzal Hossain, Hyun Lee, Jina Baek, Hye Seon Park, Chae-Lyul Lim, DoYeon Han, Taehyun Park, Jong Hyeok Kim, Gyungyub Gong, Mi-Na Kweon, Hee Jin Lee
Cancer Immunology, Immunotherapy.2024;[Epub] CrossRef

Review

Noninvasive follicular thyroid neoplasm with papillary-like nuclear features: its updated diagnostic criteria, preoperative cytologic diagnoses and impact on the risk of malignancy: Hee Young Na, So Yeon Park; J Pathol Transl Med. 2022;56(6):319-325. Published online November 9, 2022; DOI: https://doi.org/10.4132/jptm.2022.09.29

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Abstract PDF

Due to the extremely indolent behavior, a subset of noninvasive encapsulated follicular variant papillary thyroid carcinomas has been classified as “noninvasive follicular thyroid neoplasm with papillary-like nuclear features (NIFTP)” since 2016 and is no longer considered carcinoma. Since the introduction of this new terminology, changes and refinements have been made in diagnostic criteria. Initially, the incidence of NIFTP was estimated substantial. However, the reported incidence of NIFTP varies greatly among studies and regions, with higher incidence in North American and European countries than in Asian countries. Thus, the changes in the risk of malignancy (ROM) in the Bethesda System for Reporting Thyroid Cytopathology (TBSRTC) differ inevitably among regions. Because more conservative surgery is recommended for NIFTPs, distinguishing NIFTPs from papillary thyroid carcinomas in preoperative fine-needle aspiration cytology became one of the major concerns. This review will provide comprehensive overview of updates on diagnostic criteria, actual incidence and preoperative cytologic diagnoses of NIFTP, and its impact on the ROM in TBSRTC.

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Diagnosis of invasive encapsulated follicular variant papillary thyroid carcinoma by protein-based machine learning
Truong Phan-Xuan Nguyen, Minh-Khang Le, Sittiruk Roytrakul, Shanop Shuangshoti, Nakarin Kitkumthorn, Somboon Keelawat
Journal of Pathology and Translational Medicine.2025; 59(1): 39. CrossRef
Papillae, psammoma bodies, and/or many nuclear pseudoinclusions are helpful criteria but should not be required for a definitive cytologic diagnosis of papillary thyroid carcinoma: An institutional experience of 207 cases with surgical follow up
Tarik M. Elsheikh, Matthew Thomas, Jennifer Brainard, Jessica Di Marco, Erica Manosky, Bridgette Springer, Dawn Underwood, Deborah J. Chute
Cancer Cytopathology.2024; 132(6): 348. CrossRef
ThyroSeq overview on indeterminate thyroid nodules: An institutional experience
Sam Sirotnikov, Christopher C. Griffith, Daniel Lubin, Chao Zhang, Nabil F. Saba, Dehong Li, Amanda Kornfield, Amy Chen, Qiuying Shi
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Oncocytic Noninvasive Follicular Thyroid Neoplasm with Papillary-Like Nuclear Features: A Case Report
Kaveripakam Ajay Joseph, Sana Ahuja, Sufian Zaheer
Indian Journal of Surgical Oncology.2024; 15(S4): 606. CrossRef
Cytologic hallmarks and differential diagnosis of papillary thyroid carcinoma subtypes
Agnes Stephanie Harahap, Chan Kwon Jung
Journal of Pathology and Translational Medicine.2024; 58(6): 265. CrossRef
Preoperative evaluation of thyroid nodules – Diagnosis and management strategies
Tapoi Dana Antonia, Lambrescu Ioana Maria, Gheorghisan-Galateanu Ancuta-Augustina
Pathology - Research and Practice.2023; 246: 154516. CrossRef
Reevaluating diagnostic categories and associated malignancy risks in thyroid core needle biopsy
Chan Kwon Jung
Journal of Pathology and Translational Medicine.2023; 57(4): 208. CrossRef
Strategies for Treatment of Thyroid Cancer
Deepika Yadav, Pramod Kumar Sharma, Rishabha Malviya, Prem Shankar Mishra
Current Drug Targets.2023; 24(5): 406. CrossRef
Identification of NIFTP-Specific mRNA Markers for Reliable Molecular Diagnosis of Thyroid Tumors
So-Yeon Lee, Jong-Lyul Park, Kwangsoon Kim, Ja Seong Bae, Jae-Yoon Kim, Seon-Young Kim, Chan Kwon Jung
Endocrine Pathology.2023; 34(3): 311. CrossRef

Original Article

Diagnostic distribution and pitfalls of glandular abnormalities in cervical cytology: a 25-year single-center study: Jung-A Sung, Ilias P. Nikas, Haeryoung Kim, Han Suk Ryu, Cheol Lee; J Pathol Transl Med. 2022;56(6):354-360. Published online November 9, 2022; DOI: https://doi.org/10.4132/jptm.2022.09.05

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Abstract PDF

Background
Detection of glandular abnormalities in Papanicolaou (Pap) tests is challenging. This study aimed to review our institute’s experience interpreting such abnormalities, assess cytohistologic concordance, and identify cytomorphologic features associated with malignancy in follow-up histology.
Methods
Patients with cytologically-detected glandular lesions identified in our pathology records from 1995 to 2020 were included in this study.
Results
Of the 683,197 Pap tests performed, 985 (0.144%) exhibited glandular abnormalities, 657 of which had tissue follow-up available. One hundred eighty-eight cases were cytologically interpreted as adenocarcinoma and histologically diagnosed as malignant tumors of various origins. There were 213 cases reported as atypical glandular cells (AGC) and nine cases as adenocarcinoma in cytology, yet they were found to be benign in follow-up histology. In addition, 48 cases diagnosed with AGC and six with adenocarcinoma cytology were found to have cervical squamous lesions in follow-up histology, including four squamous cell carcinomas. Among the cytomorphological features examined, nuclear membrane irregularity, three-dimensional clusters, single-cell pattern, and presence of mitoses were associated with malignant histology in follow-up.
Conclusions
This study showed our institute’s experience detecting glandular abnormalities in cervical cytology over a 25-year period, revealing the difficulty of this task. Nonetheless, the present study indicates that several cytological findings such as membrane irregularity, three-dimensional clusters, single-cell pattern, and evidence of proliferation could help distinguishing malignancy from a benign lesion.

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“Atypical Glandular Cells” on Cervical Cytology: Correlation Between Glandular Cell Component Volume and Histological Follow‐Up
Havva Gokce Terzioglu, Alessa Aragao, Julieta E. Barroeta
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Case Study

Papillary and medullary thyroid carcinomas coexisting in the same lobe, first suspected based on fine-needle aspiration cytology: a case report: Hyun Hee Koh, Young Lyun Oh; J Pathol Transl Med. 2022;56(5):301-308. Published online September 13, 2022; DOI: https://doi.org/10.4132/jptm.2022.08.03

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Abstract PDF

Because different types of thyroid malignancies have distinct embryological origins, coexisting tumors are rarely observed. We describe a coexisting papillary thyroid carcinoma (PTC) and medullary thyroid carcinoma (MTC) first suspected by fine-needle aspiration cytology (FNAC). A 57-year-old female presented with an irregular mass in the right thyroid lobe. The cytopathologic findings of fine-needle aspiration showed two components: a papillary-like arrangement consisting of cells with pale enlarged nuclei indicative of PTC and loose clusters comprised of oval cells with granular chromatin indicative of MTC. The diagnosis of a coexisting PTC and MTC was initially confirmed by calcitonin immunocytochemistry and later after total thyroidectomy. Although some surgical case reports of PTC and MTC coexisting in either the same or different lobes have been documented, a case suspected by FNAC before the surgery has rarely been reported. Because appropriate treatment and prognosis of PTC and MTC are different, cytopathologists should be aware of this rare entity.

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Original Articles

Evaluation of the characteristics of multiple human papillomavirus (HPV) infections identified using the BD Onclarity HPV assay and comparison with those of single HPV infection: Jinhee Kim, Moonsik Kim, Ji Young Park; J Pathol Transl Med. 2022;56(5):289-293. Published online September 13, 2022; DOI: https://doi.org/10.4132/jptm.2022.08.02

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Background
Human papillomavirus (HPV) infection is a major cause of cervical cancer and associated precursor lesions. Multiple HPV genotype infections have been reported. However, their clinicopathological characteristics still remain elusive.
Methods
For this study, 814 consecutive patients who had undergone colposcopy and HPV genotyping test using BD Onclarity HPV assay were retrospectively selected. Clinicopathological parameters of multiple HPV infections were compared with those of single HPV infection.
Results
Multiple HPV infections were found in 110 out of 814 cases (13.5%). Multiple HPV infections were associated with a significantly higher incidence of high-grade intraepithelial lesions (HSILs) compared with single HPV infection. Other high-risk HPV genotypes, in addition to HPV 16, were found more frequently in the multiple HPV infections group; these included HPV 51, 52, 33/58, 56/59/66, and 35/39/68. No specific coinfection pattern was not identified. Additionally, the number of HPV genotypes in multiple HPV infections was not associated with the progression to HSIL or squamous cell carcinoma.
Conclusions
Multiple HPV infections have distinct clinicopathological characteristics (compared with single HPV infection). As their biological behavior is uncertain, close and frequent follow-up is warranted.

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The Prevalence of Multi-Type Infections Among Human Papillomavirus Types in Korean Women
Jang Mook Kim, Hee Seung Song, Jieun Hwang, Jae Kyung Kim
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Multiple high-risk human papillomavirus infections exacerbate cervical lesion risk: epidemiological evidence from suining, Sichuan
Yaling Jing, Jianhui Chen, Fang Lin, Xiaonan Huang, Yulin Liu, Mingcai Zhao, Chuan Ye, Lianfang Zhao, Xiaofang Liu, Jiayan Yang
Virology Journal.2025;[Epub] CrossRef
The cervical cancer related distribution, coinfection and risk of 15 HPV types in Baoan, Shenzhen, in 2017–2023
Rukai Li, Weiwei Meng, Yunhai Zuo, Yanli Xu, Shaonan Wu
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Molecular findings and virological assessment of bladder papillomavirus infection in cattle
Francesca De Falco, Anna Cutarelli, Francesca Luisa Fedele, Cornel Catoi, Sante Roperto
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Patterns of single and multiple HPV infections in female: A systematic review and meta-analysis
Dan Zhou, Jing Xue, Yaqiong Sun, Liling Zhu, Ming Zhao, Meimei Cui, Min Zhang, Jingjing Jia, Limei Luo
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Age distribution of patients with multiple High-Risk Human Papilloma Virus (HR-HPV) genotypes and HPV vaccine recommendations by age
Gülçin Çetin Uysal, Nil Tekin
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Relative distribution of HPV genotypes in histological cervical samples and associated grade lesion in a women population over the last 16 years in Burgundy, France
Christelle Auvray, Serge Douvier, Odile Caritey, Jean-Baptiste Bour, Catherine Manoha
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Epidemiologic characteristics of high-risk HPV and the correlation between multiple infections and cervical lesions
Qinli Luo, Xianghua Zeng, Hanyi Luo, Ling Pan, Ying Huang, Haiyan Zhang, Na Han
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Cytopathologic features of human papillomavirus–independent, gastric-type endocervical adenocarcinoma: Min-Kyung Yeo, Go Eun Bae, Dong-Hyun Kim, In-Ock Seong, Kwang-Sun Suh; J Pathol Transl Med. 2022;56(5):260-269. Published online September 13, 2022; DOI: https://doi.org/10.4132/jptm.2022.07.05

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Abstract PDF

Background
Gastric-type endocervical adenocarcinoma (GEA) is unrelated to human papillomavirus (HPV) infection and is clinically aggressive compared with HPV-associated usual-type endocervical adenocarcinoma (UEA). The cytological diagnosis falls short of a definitive diagnosis of GEA and is often categorized as atypical glandular cells (AGCs). To improve cytologic recognition, cytological findings of HPV-independent GEA were analyzed and the results compared with HPV-associated UEA.
Methods
Cervical Papanicolaou (Pap) smears from eight patients with a histopathologic diagnosis of GEA and 12 control cases of UEA were reviewed. All slides were conventionally prepared and/or liquid-based prepared (ThinPrep) and stained following the Pap method. A mucinous background, architectural, nuclear, and cytoplasmic features were analyzed and compared with UEA.
Results
Preoperative cytologic diagnoses of the eight GEA cases were AGCs, favor neoplastic in three cases, adenocarcinoma in situ in one case, and adenocarcinoma in four cases. Cytologically, monolayered honeycomb-like sheets (p = .002) of atypical endocervical cells with vacuolar granular cytoplasm (p = .001) were extensive in GEA, and three-dimensional clusters (p = .010) were extensive in UEA. Although the differences were not statistically significant, background mucin (p = .058), vesicular nuclei (p = .057), and golden-brown intracytoplasmic mucin (p = .089) were also discriminatory findings for GEA versus UEA.
Conclusions
Although GEA is difficult to diagnose on cytologic screening, GEA can be recognized based on cytologic features of monolayered honeycomb sheets of atypical endocervical cells with abundant vacuolar cytoplasm and some golden-brown intracytoplasmic mucin. UEA cases are characterized by three-dimensional clusters.

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Gastric-Type Cervical Adenocarcinoma: Clinicopathologic Features, Molecular Landscape, and Therapeutic Challenges
Hiroshi Yoshida, Daiki Higuchi, Waku Takigawa, Nao Kikkawa, Taro Yamanaka, Ayaka Nagao, Mayumi Kobayashi-Kato, Masaya Uno, Mitsuya Ishikawa, Kouya Shiraishi
Journal of Personalized Medicine.2026; 16(2): 72. CrossRef
A Comparative Analysis of Usual- and Gastric-Type Cervical Adenocarcinoma in a Japanese Population Reveals Distinct Clinicopathological and Molecular Features with Prognostic and Therapeutic Insights
Umme Farzana Zahan, Hasibul Islam Sohel, Kentaro Nakayama, Masako Ishikawa, Mamiko Nagase, Sultana Razia, Kosuke Kanno, Hitomi Yamashita, Shahataj Begum Sonia, Satoru Kyo
International Journal of Molecular Sciences.2025; 26(15): 7469. CrossRef
Diagnostic value of cytology in detecting human papillomavirus–independent cervical malignancies: a nation-wide study in Korea
Hye-Ra Jung, Junyoung Shin, Chong Woo Yoo, Eun Na Kim, Cheol Lee, Kyeongmin Kim, Ho-chang Lee, Yonghee Lee, Ji Hye Kim, Soo Jin Jung, Yumin Chung, Joo Yeon Kim, Hye Eun Park, Tae Hoen Kim, Wonae Lee, Min-Sun Cho, Ran Hong, Yoon Jung Choi, Younghee Choi, Y
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Risk Factors Affecting Clinical Outcomes of Low-risk Early-stage Human Papillomavirus–Associated Endocervical Adenocarcinoma Treated by Surgery Alone: Application of Silva Pattern
Bong Kyung Bae, Hyunsik Bae, Won Kyung Cho, Byoung-Gie Kim, Chel Hun Choi, Tae-Joong Kim, Yoo-Young Lee, Jeong-Won Lee, Hyun-Soo Kim, Won Park
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Correlation between myoferlin expression and lymph node metastasis in papillary thyroid carcinoma: Ji Min Na, Dong Chul Kim, Dae Hyun Song, Hyo Jung An, Hyun Min Koh, Jeong-Hee Lee, Jong Sil Lee, Jung Wook Yang, Min Hye Kim; J Pathol Transl Med. 2022;56(4):199-204. Published online May 11, 2022; DOI: https://doi.org/10.4132/jptm.2022.03.19

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Abstract PDF: Background
Myoferlin is a multifunctional protein expressed in various normal and cancer cells, with novel oncogenic roles being newly discovered. Recently, correlations have been found between myoferlin expression and unfavorable prognosis in various carcinomas. This study investigated the prognostic role of myoferlin expression in papillary thyroid carcinoma (PTC), specifically that associated with nodal metastasis.
Methods
We collected clinicopathological data and PTC tissues from 116 patients who had been admitted to Gyeongsang National University Hospital in 2010. Immunohistochemical analysis was performed on surgical specimen-derived tissue microarray blocks. Myoferlin expression was graded, and the relationship between expression level and pathological features of tumors based on the American Joint Committee on Cancer staging system was evaluated.
Results
Of the 116 patient samples, 100 cases exhibited positive myoferlin expression. Higher grade of myoferlin expression was correlated with lower T category group (p = .010). Presence of lymph node metastasis was determined to be significantly correlated with low-grade myoferlin expression (p = .019), with no significant difference between pN1a and pN1b tumors.
Conclusions
Our study revealed an adverse correlation between myoferlin expression and pathological features of PTC, evidence of the potential prognostic role of myoferlin in PTC lymph node metastasis.

A multicenter study of interobserver variability in pathologic diagnosis of papillary breast lesions on core needle biopsy with WHO classification: Hye Ju Kang, Sun Young Kwon, Ahrong Kim, Woo Gyeong Kim, Eun Kyung Kim, Ae Ree Kim, Chungyeul Kim, Soo Kee Min, So Young Park, Sun Hee Sung, Hye Kyoung Yoon, Ahwon Lee, Ji Shin Lee, Hyang Im Lee, Ho Chang Lee, Sung Chul Lim, Sun Young Jun, Min Jung Jung, Chang Won Jung, Soo Youn Cho, Eun Yoon Cho, Hye Jeong Choi, So Yeon Park, Jee Yeon Kim, In Ae Park, Youngmee Kwon; J Pathol Transl Med. 2021;55(6):380-387. Published online October 6, 2021; DOI: https://doi.org/10.4132/jptm.2021.07.29

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Abstract PDF Supplementary Material

Background
Papillary breast lesions (PBLs) comprise diverse entities from benign and atypical lesions to malignant tumors. Although PBLs are characterized by a papillary growth pattern, it is challenging to achieve high diagnostic accuracy and reproducibility. Thus, we investigated the diagnostic reproducibility of PBLs in core needle biopsy (CNB) specimens with World Health Organization (WHO) classification.
Methods
Diagnostic reproducibility was assessed using interobserver variability (kappa value, κ) and agreement rate in the pathologic diagnosis of 60 PBL cases on CNB among 20 breast pathologists affiliated with 20 medical institutions in Korea. This analysis was performed using hematoxylin and eosin (H&E) staining and immunohistochemical (IHC) staining for cytokeratin 5 (CK5) and p63. The pathologic diagnosis of PBLs was based on WHO classification, which was used to establish simple classifications (4-tier, 3-tier, and 2-tier).
Results
On WHO classification, H&E staining exhibited ‘fair agreement’ (κ = 0.21) with a 47.0% agreement rate. Simple classifications presented improvement in interobserver variability and agreement rate. IHC staining increased the kappa value and agreement rate in all the classifications. Despite IHC staining, the encapsulated/solid papillary carcinoma (EPC/SPC) subgroup (κ = 0.16) exhibited lower agreement compared to the non-EPC/SPC subgroup (κ = 0.35) with WHO classification, which was similar to the results of any other classification systems.
Conclusions
Although the use of IHC staining for CK5 and p63 increased the diagnostic agreement of PBLs in CNB specimens, WHO classification exhibited a higher discordance rate compared to any other classifications. Therefore, this result warrants further intensive consensus studies to improve the diagnostic reproducibility of PBLs with WHO classification.

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Arslan Ahmad, Muhammad Ammar, Muhammad Hasnain Saleem Choudary, Muhammad Nouman Sadiq, Rana Uzair Ahmad, Nouman Aziz
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Shijing Wang, Qingfu Zhang, Xiaoyun Mao
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Liang Xu, Qixin Mao, Qiuming Liu, Yufeng Gao, Lihua Luo, Chungen Guo, Wei Qu, Ningning Yan, Yali Cao
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Proto-oncogene Pokemon in thyroid cancer: a potential promoter of tumorigenesis in papillary thyroid carcinoma: Kyungseek Chang, Sung-Im Do, Kyungeun Kim, Seoung Wan Chae, In-gu Do, Hyun Joo Lee, Dong Hoon Kim, Jin Hee Sohn; J Pathol Transl Med. 2021;55(5):317-323. Published online August 9, 2021; DOI: https://doi.org/10.4132/jptm.2021.06.28

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Abstract PDF Supplementary Material

Background
Pokemon is an oncogenic transcription regulator that plays a critical role in cellular differentiation. Although it has been found to be overexpressed in several types of cancer involving different organs, its role in thyroid gland has yet to be reported. The objective of this study was to evaluate the expression of Pokemon in papillary thyroid carcinoma (PTC) based on clinicopathological parameters.
Methods
Tissue microarray samples derived from patients with PTC or benign thyroid disease were used to evaluate Pokemon expression based on immunohistochemical analysis. Correlations of its expression with various clinicopathological parameters were then analyzed.
Results
Pokemon expression was observed in 22.0% of thyroid follicular cells from the normal group, 44.0% from the group with benign thyroid diseases, and 92.1% from the group with PTC (p < .001). The intensity of Pokemon expression was markedly higher in the PTC group. Pokemon expression level and PTC tumor size showed an inverse correlation. T1a tumors showed strong expression levels of Pokemon. However, larger tumors showed weak expression (p = .006).
Conclusions
Pokemon expression is associated with tumorigenesis of PTC, with expression showing an inverse correlation with PTC tumor size. This might be related to the negative regulation of aerobic glycolysis by Pokemon.

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Systems biology approach delineates critical pathways associated with papillary thyroid cancer: a multi-omics data analysis
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Evaluation of human papillomavirus (HPV) prediction using the International Endocervical Adenocarcinoma Criteria and Classification system, compared to p16 immunohistochemistry and HPV RNA in-situ hybridization: Hezhen Ren, Jennifer Pors, Christine Chow, Monica Ta, Simona Stolnicu, Robert Soslow, David Huntsman, Lynn Hoang; J Pathol Transl Med. 2020;54(6):480-488. Published online August 31, 2020; DOI: https://doi.org/10.4132/jptm.2020.07.18

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Abstract PDF

Background
The International Endocervical Adenocarcinoma Criteria and Classification (IECC) separated endocervical adenocarcinomas into human papillomavirus (HPV) associated (HPVA) and non–HPV-associated (NHPVA) categories by morphology alone. Our primary objective was to assess the accuracy of HPV prediction by the IECC system compared to p16 immunohistochemistry and HPV RNA in-situ hybridization (RISH). Our secondary goal was to directly compare p16 and HPV RISH concordance.
Methods
Cases were classified by IECC and stained for p16 and HPV RISH on tissue microarray, with discordant p16/HPV RISH cases re-stained on whole tissue sections. Remaining discordant cases (p16/HPV, IECC/p16, IECC/HPV discordances) were re-reviewed by the original pathologists (n = 3) and external expert pathologists (n = 2) blinded to the p16 and HPV RISH results. Final IECC diagnosis was assigned upon independent agreement between all reviewers.
Results
One hundred and eleven endocervical adenocarcinomas were classified originally into 94 HPVA and 17 NHPVA cases. p16 and HPV RISH was concordant in 108/111 cases (97%) independent of the IECC. HPV RISH and p16 was concordant with IECC in 103/111 (93%) and 106/111 (95%), respectively. After expert review, concordance improved to 107/111 (96%) for HPV RISH. After review of the eight discordant cases, one remained as HPVA, four were reclassified to NHPVA from HPVA, two were unclassifiable, and one possibly represented a mixed usual and gastric-type adenocarcinoma.
Conclusions
p16 and HPV RISH have excellent concordance in endocervical adenocarcinomas, and IECC can predict HPV status in most cases. Focal apical mitoses and apoptotic debris on original review led to the misclassification of several NHPVA as HPVA.

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Prevalence of high-risk human papillomavirus and its genotype distribution in head and neck squamous cell carcinomas: Yuil Kim, Young-Hoon Joo, Min-Sik Kim, Youn Soo Lee; J Pathol Transl Med. 2020;54(5):411-418. Published online July 21, 2020; DOI: https://doi.org/10.4132/jptm.2020.06.22

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Abstract PDF

Background
High-risk (HR) human papillomavirus (HPV) is found in a subset of head and neck (HN) squamous cell carcinomas (SCCs). For oropharyngeal SCCs, HR HPV positivity is known to be associated with good prognosis, and a separate staging system for HPV-associated carcinomas using p16 immunohistochemistry (IHC) as a surrogate test has been adopted in the 8th American Joint Committee on Cancer staging system. We examined the HR HPV status and the genotype distribution in five HN subsites.
Methods
Formalin-fixed paraffin-embedded tissue sections were used for p16 IHC and DNA extraction. HPV DNA detection and genotyping were done employing either a DNA chip-based or real-time polymerase chain reaction–based method.
Results
During 2011–2019, a total of 466 SCCs were tested for HPV DNA with 34.1% positivity for HR HPV. Among HN subsites, the oropharynx showed the highest HR HPV prevalence (149/205, 75.1%), followed by the sinonasal tract (3/14, 21.4%), larynx (5/43, 11.6%), hypopharynx (1/38, 2.6%), and oral cavity (1/166, 0.6%). The most common HPV genotype was HPV16 (84.3%) followed by HPV35 (6.9%) and HPV33 (4.4%). Compared with HR HPV status, the sensitivity and specificity of p16 IHC were 98.6% and 94.3% for the oropharynx, and 99.2% and 93.8% for the tonsil, respectively.
Conclusions
Using a Korean dataset, we confirmed that HR HPV is most frequently detected in oropharyngeal SCCs. p16 positivity showed a good concordance with HR HPV DNA for oropharyngeal and especially tonsillar carcinomas. The use of p16 IHC may further be extended to predict HR HPV positivity in sinonasal tract SCCs.

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Highly prevalent BRAF V600E and low-frequency TERT promoter mutations underlie papillary thyroid carcinoma in Koreans: Sue Youn Kim, Taeeun Kim, Kwangsoon Kim, Ja Seong Bae, Jeong Soo Kim, Chan Kwon Jung; J Pathol Transl Med. 2020;54(4):310-317. Published online June 15, 2020; DOI: https://doi.org/10.4132/jptm.2020.05.12

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Abstract PDF

Background
The presence of telomerase reverse transcriptase (TERT) promoter mutations have been associated with a poor prognosis in patients with papillary thyroid carcinomas (PTC). The frequency of TERT promoter mutations varies widely depending on the population and the nature of the study.
Methods
Data were prospectively collected in 724 consecutive patients who underwent thyroidectomy for PTC from 2018 to 2019. Molecular testing for BRAF V600E and TERT promoter mutations was performed in all cases.
Results
TERT promoter alterations in two hotspots (C228T and C250T) and C216T were found in 16 (2.2%) and 4 (0.6%) of all PTCs, respectively. The hotspot mutations were significantly associated with older age at diagnosis, larger tumor size, extrathyroidal extension, higher pathologic T category, lateral lymph node metastasis, and higher American Thyroid Association recurrence risk. The patients with C216T variant were younger and had a lower American Thyroid Association recurrence risk than those with hotspot mutations. Concurrent BRAF V600E was found in 19 of 20 cases with TERT promoter mutations. Of 518 microcarcinomas measuring ≤1.0 cm in size, hotspot mutations and C216T variants were detected in five (1.0%) and three (0.6%) cases, respectively.
Conclusions
Our study indicates a low frequency of TERT promoter mutations in Korean patients with PTC and supports previous findings that TERT promoter mutations are more common in older patients with unfavorable clinicopathologic features and BRAF V600E. TERT promoter mutations in patients with microcarcinoma are uncommon and may have a limited role in risk stratification. The C216T variant seems to have no clinicopathologic effect on PTC.

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Review

Clinical management of abnormal Pap tests: differences between US and Korean guidelines: Seyeon Won, Mi Kyoung Kim, Seok Ju Seong; J Pathol Transl Med. 2020;54(3):213-219. Published online April 15, 2020; DOI: https://doi.org/10.4132/jptm.2020.03.11

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Abstract PDF

Cervical cancer has been the most common gynecological cancer in Korea but has become a preventable disease with regular screening and proper vaccination. If regular screening is provided, cervical cancer does not progress to more than carcinoma in situ, due to its comparatively long precancerous duration (years to decades). In 2012, the American Society for Colposcopy and Cervical Pathology published guidelines to aid clinicians in managing women with abnormal Papanicolaou (Pap) tests, and they soon became the standard in the United States. Not long thereafter, the Korean Society of Gynecologic Oncology and the Korean Society for Cytopathology published practical guidelines to reflect the specific situation in Korea. The detailed screening guidelines and management options in the case of abnormal Pap test results are sometimes the same and sometimes different in the United States and Korean guidelines. In this article, we summarize the differences between the United States and Korean guidelines in order to facilitate physicians’ proper management of abnormal Pap test results.

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Original Articles

Comparison of papanicolaou smear and human papillomavirus (HPV) test as cervical screening tools: can we rely on HPV test alone as a screening method? An 11-year retrospective experience at a single institution: Myunghee Kang, Seung Yeon Ha, Hyun Yee Cho, Dong Hae Chung, Na Rae Kim, Jungsuk An, Sangho Lee, Jae Yeon Seok, Juhyeon Jeong; J Pathol Transl Med. 2020;54(1):112-118. Published online January 15, 2020; DOI: https://doi.org/10.4132/jptm.2019.11.29

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268 Download
20 Web of Science
23 Crossref

Abstract PDF

Background
The decrease in incidence of cervical dysplasia and carcinoma has not been as dramatic as expected with the development of improved research tools and test methods. The human papillomavirus (HPV) test alone has been suggested for screening in some countries. The National Cancer Screening Project in Korea has applied Papanicolaou smears (Pap smears) as the screening method for cervical dysplasia and carcinoma. We evaluated the value of Pap smear and HPV testing as diagnostic screening tools in a single institution.
Methods
Patients co-tested with HPV test and Pap smear simultaneously or within one month of each other were included in this study. Patients with only punch biopsy results were excluded because of sampling errors. A total of 999 cases were included, and the collected reports encompassed results of smear cytology, HPV subtypes, and histologic examinations.
Results
Sensitivity and specificity of detecting high-grade squamous intraepithelial lesion (HSIL) and squamous cell carcinoma (SCC) were higher for Pap smears than for HPV tests (sensitivity, 97.14%; specificity, 85.58% for Pap smears; sensitivity, 88.32%; specificity, 54.92% for HPV tests). HPV tests and Pap smears did not differ greatly in detection of low-grade squamous intraepithelial lesion (85.35% for HPV test, 80.31% for Pap smears). When atypical glandular cells were noted on Pap smears, the likelihood for histologic diagnosis of adenocarcinoma following Pap smear was higher than that of high-risk HPV test results (18.8 and 1.53, respectively).
Conclusions
Pap smears were more useful than HPV tests in the diagnosis of HSIL, SCC, and glandular lesions.

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A Multi-institutional Study of Prevalence and Clinicopathologic Features of Non-invasive Follicular Thyroid Neoplasm with Papillary-like Nuclear Features (NIFTP) in Korea: Ja Yeong Seo, Ji Hyun Park, Ju Yeon Pyo, Yoon Jin Cha, Chan Kwon Jung, Dong Eun Song, Jeong Ja Kwak, So Yeon Park, Hee Young Na, Jang-Hee Kim, Jae Yeon Seok, Hee Sung Kim, Soon Won Hong; J Pathol Transl Med. 2019;53(6):378-385. Published online October 21, 2019; DOI: https://doi.org/10.4132/jptm.2019.09.18

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Abstract PDF

Background
In the present multi-institutional study, the prevalence and clinicopathologic characteristics of non-invasive follicular thyroid neoplasm with papillary-like nuclear features (NIFTP) were evaluated among Korean patients who underwent thyroidectomy for papillary thyroid carcinoma (PTC).
Methods
Data from 18,819 patients with PTC from eight university hospitals between January 2012 and February 2018 were retrospectively evaluated. Pathology reports of all PTCs and slides of potential NIFTP cases were reviewed. The strict criterion of no papillae was applied for the diagnosis of NIFTP. Due to assumptions regarding misclassification of NIFTP as non-PTC tumors, the lower boundary of NIFTP prevalence among PTCs was estimated. Mutational analysis for BRAF and three RAS isoforms was performed in 27 randomly selected NIFTP cases.
Results
The prevalence of NIFTP was 1.3% (238/18,819) of all PTCs when the same histologic criteria were applied for NIFTP regardless of the tumor size but decreased to 0.8% (152/18,819) when tumors ≥1 cm in size were included. The mean follow-up was 37.7 months and no patient with NIFTP had evidence of lymph node metastasis, distant metastasis, or disease recurrence during the follow-up period. A difference in prevalence of NIFTP before and after NIFTP introduction was not observed. BRAF^V600E mutation was not found in NIFTP. The mutation rate for the three RAS genes was 55.6% (15/27).
Conclusions
The low prevalence and indolent clinical outcome of NIFTP in Korea was confirmed using the largest number of cases to date. The introduction of NIFTP may have a small overall impact in Korean practice.

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Review

Current Status of and Perspectives on Cervical Cancer Screening in Korea: Sung-Chul Lim, Chong Woo Yoo; J Pathol Transl Med. 2019;53(4):210-216. Published online May 16, 2019; DOI: https://doi.org/10.4132/jptm.2019.04.11

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Since the introduction of the Papanicolaou (Pap) smear system in 1943, cervicovaginal cytology has been used as a standard screening test for cervical cancer. The dissemination of this test contributed to reductions of the incidence and mortality of cervical cancer worldwide. In Korea, regular health check-ups for industrial workers and their family members were introduced in 1988 and were performed as part of the National Cancer Screening Program in 1999. As a result, the incidence of cervical cancer in Korea has been steadily decreasing. However, about 800 cases of cervical cancer-related deaths are reported each year due to false-negative test results. Hence, new screening methods have been proposed. Liquid-based cytology (LBC) was introduced in 1996 to overcome the limitations of conventional Pap smears. Since then, other LBC methods have been developed and utilized, including the human papilloma virus test—a method with higher sensitivity that requires fewer screenings. In this study, we review current issues and future perspectives related to cervical cancer screening in Korea.

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Original Articles

Prognostic Role of Metastatic Lymph Node Ratio in Papillary Thyroid Carcinoma: Jung-Soo Pyo, Jin Hee Sohn, Kyungseek Chang; J Pathol Transl Med. 2018;52(5):331-338. Published online August 30, 2018; DOI: https://doi.org/10.4132/jptm.2018.08.07

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Abstract PDF

Background
The aim of this study is to elucidate the clinicopathological significances, including the prognostic role, of metastatic lymph node ratio (mLNR) and tumor deposit diameter in papillary thyroid carcinoma (PTC) through a retrospective review and meta-analysis.
Methods
We categorized the cases into high (≥ 0.44) and low mLNR (< 0.44) and investigated the correlations with clinicopathological parameters in 64 PTCs with neck level VI lymph node (LN) metastasis. In addition, meta-analysis of seven eligible studies was used to investigate the correlation between mLNR and survival.
Results
Among 64 PTCs with neck level VI LN metastasis, high mLNR was found in 34 PTCs (53.1%). High mLNR was significantly correlated with macrometastasis (tumor deposit diameter ≥ 0.2 cm), extracapsular spread, and number of metastatic LNs. Based on linear regression test, mLNR was significantly increased by the largest LN size but not the largest metastatic LN (mLN) size. High mLNR was not correlated with nuclear factor κB or cyclin D1 immunohistochemical expression, Ki-67 labeling index, or other pathological parameters of primary tumor. Based on meta-analysis, high mLNR significantly correlated with worse disease-free survival at the 5-year and 10-year follow-up (hazard ratio [HR], 4.866; 95% confidence interval [CI], 3.527 to 6.714 and HR, 5.769; 95% CI, 2.951 to 11.275, respectively).
Conclusions
Our data showed that high mLNR significantly correlated with worse survival, macrometastasis, and extracapsular spread of mLNs. Further cumulative studies for more detailed criteria of mLNR are needed before application in daily practice.

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Cytologic Diagnosis of Noninvasive Follicular Thyroid Neoplasm with Papillary-like Nuclear Features and Its Impact on the Risk of Malignancy in the Bethesda System for Reporting Thyroid Cytopathology: An Institutional Experience: Milim Kim, Joung Eun Kim, Hyun Jeong Kim, Yul Ri Chung, Yoonjin Kwak, So Yeon Park; J Pathol Transl Med. 2018;52(3):171-178. Published online April 3, 2018; DOI: https://doi.org/10.4132/jptm.2018.04.03

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Abstract PDF

Background
This study was performed to analyze cytologic diagnosis of noninvasive follicular thyroid neoplasm with papillary-like nuclear features (NIFTP) and its impact on the risk of malignancy (ROM) in the Bethesda System for Reporting Thyroid Cytopathology (TBSRTC).
Methods
Five thousand five hundred and forty-nine cases of thyroid fine-needle aspiration cytology (FNAC) diagnosed between 2012 and 2014 were included in this study. Diagnostic categories based on TBSRTC were compared with final surgical diagnoses, and the ROM in each category was calculated both when NIFTP was included in malignant lesions and when excluded from malignant lesions.
Results
Of the 5,549 thyroid FNAC cases, 1,891 cases underwent surgical resection. In final diagnosis, 1,700 cases were revealed as papillary thyroid carcinoma (PTC), and 25 cases were reclassified as NIFTP. The cytologic diagnoses of NIFTP were non-diagnostic in one, benign in five, atypia of undetermined significance (AUS) in 14, follicular neoplasm in two, and suspicious for malignancy in three cases. Collectively, NIFTP/encapsulated follicular variant of PTC (EFVPTC) were more frequently classified as benign, AUS, or follicular neoplasm and less frequently categorized as malignant compared to conventional PTCs. Exclusion of NIFTP from malignant diagnoses resulted in a slight decrease in malignancy rates in non-diagnostic, benign, AUS, follicular neoplasm, and suspicious for malignancy categories without any statistical significance.
Conclusions
The decrease in the ROM was not significant when NIFTP was excluded from malignant lesions. In thyroid FNACs, NIFTP/EFVPTCs were mostly classified into indeterminate categories. Therefore, it might be feasible to separate NIFTP/EFVPTC from conventional PTC on FNAC to guide clinicians to conservative management for patients with NIFTP/EFVPTC.

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Preoperative Cytologic Diagnosis of Warthin-like Variant of Papillary Thyroid Carcinoma: Jisup Kim, Beom Jin Lim, Soon Won Hong, Ju Yeon Pyo; J Pathol Transl Med. 2018;52(2):105-109. Published online February 12, 2018; DOI: https://doi.org/10.4132/jptm.2017.12.26

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Abstract PDF

Background
Warthin-like variant of papillary thyroid carcinoma (WLV-PTC) is a relatively rare variant of papillary thyroid carcinoma with favorable prognosis. However, preoperative diagnosis using fine-needle aspiration (FNA) specimens is challenging especially with lymphocytic thyroiditis characterized by Hürthle cells and lymphocytic background. To determine a helpful cytological differential point, we compared WLV-PTC FNA findings with conventional papillary thyroid carcinoma with lymphocytic thyroiditis (PTC-LT) and conventional papillary thyroid carcinoma without lymphocytic thyroiditis (PTC) regarding infiltrating inflammatory cells and their distribution. Preoperative diagnosis or potential for WLV-PTC will be helpful for surgeons to decide the scope of operation.
Methods
Of the 8,179 patients treated for papillary thyroid carcinoma between January 2007 and December 2012, 16 patients (0.2%) were pathologically confirmed as WLV-PTC and four cases were available for cytologic review. For comparison, we randomly selected six PTC-LT cases and five PTC cases during the same period. The number of intratumoral and background lymphocytes, histiocytes, neutrophils, and the presence of giant cells were evaluated and compared using conventional smear and ThinPrep preparations.
Results
WLV-PTC showed extensive lymphocytic smear with incorporation of thyroid follicular tumor cell clusters and frequent histiocytes. WLV-PTC was associated with higher intratumoral and background lymphocytes and histiocytes compared with PTC-LT or PTC. The difference was more distinct in liquid-based cytology.
Conclusions
The lymphocytic smear pattern and the number of inflammatory cells of WLV-PTC are different from those of PTC-LT or PTC and will be helpful for the differential diagnosis of WLV-PTC in preoperative FNA.

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Warthin-like variant of papillary thyroid carcinoma: a rare case report
Rafif E Mattar, Osama Almubadel, Areej Bokhari
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Warthin-like variant of papillary thyroid carcinoma with lymph node metastases: a case report and review of the literature
Andrii Hryshchyshyn, Andrii Bahrii, Pavlina Botsun, Volodymyr Chuba
Journal of Medical Case Reports.2024;[Epub] CrossRef
Cytologic hallmarks and differential diagnosis of papillary thyroid carcinoma subtypes
Agnes Stephanie Harahap, Chan Kwon Jung
Journal of Pathology and Translational Medicine.2024; 58(6): 265. CrossRef
Warthin-like papillary thyroid carcinoma: a case report and comprehensive review of the literature
Abdel Mouhaymen Missaoui, Fatma Hamza, Wafa Belabed, Manel Mellouli, Mohamed Maaloul, Slim Charfi, Issam Jardak, Tahya Sellami-Boudawara, Nabila Rekik, Mohamed Abid
Frontiers in Endocrinology.2023;[Epub] CrossRef
The Warthin-like variant of papillary thyroid carcinomas: a clinicopathologic analysis report of two cases
Xing Zhao, Yijia Zhang, Pengyu Hao, Mingzhen Zhao, Xingbin Shen
Oncologie.2023; 25(5): 581. CrossRef
Challenges in Cytology Specimens With Hürthle Cells
Eleni Thodou, Sule Canberk, Fernando Schmitt
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Warthin-like variant of Papillary thyroid carcinoma—Case report of an uncommon tumour with review of literature
Pradyumna Kumar Sahoo, Rashmi Patnayak, Perwez Alam Khan, Amitabh Jena
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The Significance of TROP2 Expression in Predicting BRAF Mutations in Papillary Thyroid Carcinoma: Joon Seog Kong, Hyeon Jin Kim, Min-Jung Kim, Areumnuri Kim, Dalnim Lee, Kanghee Han, Sunhoo Park, Jae Soo Koh, Jae Kyung Myung; J Pathol Transl Med. 2018;52(1):14-20. Published online December 11, 2017; DOI: https://doi.org/10.4132/jptm.2017.10.17

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Abstract PDF

Background
Trophoblast antigen 2 (TROP2) is a human trophoblast cell-surface glycoprotein that is overexpressed in several types of epithelial cancers, and is suggested to be associated with an unfavorable prognosis. BRAF mutations are the most common genetic alteration in papillary thyroid carcinoma (PTC). We evaluated the correlation between TROP2 expression and BRAF mutation in PTC.
Methods
First, we carried out pyrosequencing for BRAF mutations and immunohistochemistry for TROP2 expression with a tissue microarray consisting of 52 PTC cases. Membranous staining in at least 5% of tumor cells was designated as positive staining and we analyzed the relationship between TROP2 expression and diverse clinicopathological factors, including BRAF mutation. Second, we tested TROP2 mRNA expression in three thyroid cancer cell lines with BRAF mutations (BCPAP, SNU790, and 8505C) and a normal thyroid cell line. Additionally, we checked TROP2 protein levels in a normal thyroid cell line after introduction of the BRAF V600E mutation.
Results
In this study, 21 of 26 cases with BRAF mutation showed TROP2 immunoreactivity, whereas all 26 cases without BRAF mutation showed no immunoreactivity for TROP2 with a statistically significant difference (p<.001). Upregulation of TROP2 mRNA was observed in all three thyroid cancer cell lines, but not in the normal thyroid cell line. Interestingly, however, the TROP2 expression was increased in the normal thyroid cell line after introduction of the BRAF V600E mutation.
Conclusions
Based on these results, we concluded that TROP2 expression is significantly associated with BRAF mutation and that TROP2 immunohistochemistry could be used for predicting BRAF mutations or diagnosing papillary thyroid carcinoma.

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Trop2-Targeted [18F]AlF-RESCA-RT4 ImmunoPET/CT in Guiding Clinical Surgeries of Thyroid Cancers: A Proof-of-Concept Study
Xinlu Yin, Wenzhi Jia, Le Xu, Wenjie Zheng, Yiqing Gao, Linglin Tang, You Zhang, Qianyun Wu, Dongsheng Xu, Shuxian An, Weijun Wei, Jianjun Liu, Qinyi Zhou, Jialin Feng, Jun Chen
Molecular Pharmaceutics.2026;[Epub] CrossRef
Evolution of TROP2: Biological insights and clinical applications
Xinyue Zhang, Hong Xiao, Fangjian Na, Jingqi Sun, Qi Guan, Ruotong Liu, Lutong Cai, Heming Li, Mingfang Zhao
European Journal of Medicinal Chemistry.2025; 296: 117863. CrossRef
Diagnostic and prognostic utility of TROP-2, SLP-2, and CXCL12 expression in papillary thyroid carcinoma
Amany Selim Attia, Samia Hussein, Hend Sameh, Amr Khalil, Ahmad Barakat Waley, Ihab Matar, Reham Sameh
Cancer Biomarkers.2024; 39(3): 211. CrossRef
BRAF mutation, selected miRNAs and genes expression in primary papillary thyroid carcinomas and local lymph node metastases
David Kalfert, Marie Ludvikova, Martin Pesta, Tommi Hakala, Lucie Dostalova, Hana Grundmannova, Jindra Windrichova, Katerina Houfkova, Tereza Knizkova, Jaroslav Ludvik, Jiri Polivka, Ivana Kholova
Pathology - Research and Practice.2024; 258: 155319. CrossRef
Unveiling the placental secrets: Exploring histopathological changes and TROP2 expression in intrahepatic cholestasis of pregnancy
Cezmi Baran Ozalp, Sozdar Akdogan, Dilan Cetinavci, Melike Nur Akin, Hulya Elbe, Burcu Kasap
Placenta.2024; 154: 201. CrossRef
Trop2-Targeted Molecular Imaging in Solid Tumors: Current Advances and Future Outlook
Yongshun Liu, Wenpeng Huang, Rachel J. Saladin, Jessica C. Hsu, Weibo Cai, Lei Kang
Molecular Pharmaceutics.2024; 21(12): 5909. CrossRef
TROP2 is a Good Indicator for Infiltrative Nature of Carcinoma Rather than Diagnosing Malignancy in Thyroid
E. Kılınc, P. Gunes, A. Doganer
Indian Journal of Otolaryngology and Head & Neck Surgery.2022; 74(S2): 2560. CrossRef
Advances in Trop2-targeted therapy: Novel agents and opportunities beyond breast cancer
Xinlin Liu, Junwen Deng, Yang Yuan, Wujun Chen, Wenshe Sun, Yanhong Wang, Haiming Huang, Bing Liang, Tao Ming, Jialian Wen, Binghuan Huang, Dongming Xing
Pharmacology & Therapeutics.2022; 239: 108296. CrossRef
Knockdown of Trop2 inhibits proliferation and migration and induces apoptosis of endometrial cancer cells via AKT/β‐catenin pathway
Xiaotong Sun, Guangyang Xing, Cui Zhang, Kun Lu, Yuqiong Wang, Xiyan He
Cell Biochemistry and Function.2020; 38(2): 141. CrossRef
Can TROP2 be used as a prognostic marker in endometrioid endometrial carcinoma?
SerkanY Celik, Özgürİlhan Çelik
Indian Journal of Pathology and Microbiology.2020; 63(3): 418. CrossRef
Diagnostic Value of TROP-2 and CK19 Expression in Papillary Thyroid Carcinoma in Both Surgical and Cytological Specimens
Asmaa Gaber Abdou, Mohammed Shabaan, Rania Abdallha, Nehal Nabil
Clinical Pathology.2019;[Epub] CrossRef
Evaluation of Diagnostic Utility of Immunohistochemistry Markers of TROP-2 and HBME-1 in the Diagnosis of Thyroid Carcinoma
Nooshin Zargari, Maral Mokhtari
European Thyroid Journal.2019; 8(1): 1. CrossRef
The diagnostic value of TROP-2, SLP-2 and CD56 expression in papillary thyroid carcinoma
Xueyang Yang, Yifang Hu, He Shi, Chengzhou Zhang, Zhixiao Wang, Xiaoyun Liu, Huanhuan Chen, Lijuan Zhang, Dai Cui
European Archives of Oto-Rhino-Laryngology.2018; 275(8): 2127. CrossRef
TROP2 promotes cell proliferation and migration in osteosarcoma through PI3K/AKT signaling
Qing‑Zhi Gu, Abulimiti Nijiati, Xing Gao, Kai‑Liang Tao, Cheng‑Duo Li, Xue‑Peng Fan, Zheng Tian
Molecular Medicine Reports.2018;[Epub] CrossRef

Programmed Death-Ligand 1 Expression and Its Correlation with Lymph Node Metastasis in Papillary Thyroid Carcinoma: Hyo Jung An, Gyung Hyuck Ko, Jeong-Hee Lee, Jong Sil Lee, Dong Chul Kim, Jung Wook Yang, Min Hye Kim, Jin Pyeong Kim, Eun Jung Jung, Dae Hyun Song; J Pathol Transl Med. 2018;52(1):9-13. Published online October 3, 2017; DOI: https://doi.org/10.4132/jptm.2017.07.26

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Abstract PDF

Background
The immunotherapeutic role of programmed death-ligand 1 (PD-L1) in life expectancy in many cancers has been highlighted. However, data regarding PD-L1 expression in papillary thyroid carcinoma (PTC) are limited. In this study, we describe the PD-L1 and programmed cell death protein 1 (PD-1) expressions in PTC and analyze their correlation with lymph node (LN) metastasis.
Methods
Clinicopathological data were obtained from 116 patients with PTC who were treated in Gyeongsang National University Hospital, Jinju, Korea in 2009. Tissue microarray blocks were made using representative paraffin blocks of classical PTCs excluding follicular variants. Two pathologists graded the proportion and intensity of PD-L1 and PD-1 expression in both tumor and inflammatory cells. According to their proportions, positive PTC cells were scored as negative (0%), grade 1 (1%–50%), and grade 2 (51%–100%). Similarly, positive inflammatory cells were graded as negative (0%), grade 1 (1%–10%), and grade 2 (11%–20%). The intensity of each protein expression was simplified as positive or negative.
Results
A statistically significant correlation exists between the proportions of PD-1 and PD-L1 expression both in papillary carcinoma (p=.001) and peritumoral lymphoid cells in the thyroid (p<.001). In addition, the proportion of PD-L1 expression in PTC cells was closely related to metastatic LNs (p=.036).
Conclusions
PD-L1 is a valuable predictive marker for LN metastasis in PTC. Immunomodulating therapies that inhibit PD-L1 might be an option for patients with LN metastasis.

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Study of PD-L1 Expression in Papillary Thyroid Carcinoma and Its Correlation to the Clinicopathologic Characteristics
Asmaa Gamal Mohamed El Sayed, Dina Ragab Diab Ibrahim, Mahmoud Mahmoud El-Leithy, Mai Mohamed Ali Ezz El Din, Hoda Hassan Abou Gabal, Reham Mohamed Faheim
Indian Journal of Medical and Paediatric Oncology.2026;[Epub] CrossRef
Summary and Analysis of Molecular Biological Changes, PD-L1 Immune Status and Clinicopathological Features of 78 Cases of Papillary Thyroid Carcinoma (<1 cm in Diameter) Combined With Lateral Cervical Lymph Node Metastasis
Xiaoteng Sun, Zhengyan He, Weijie Yu, Baoyuan Li, Xinmiao Xu, Xiaoqin Zhang, Minglong Yin
Applied Immunohistochemistry & Molecular Morphology.2026;[Epub] CrossRef
Immunotyping of thyroid cancer for clinical outcomes and implications
Jin Xu, Zhen Luo, Dayong Xu, Mujing Ke, Cheng Tan
Cancer Immunology, Immunotherapy.2025;[Epub] CrossRef
Evaluation of PD-L1, TERT promoter mutations, and BRAFV600E mutation in poorly differentiated, differentiated high grade thyroid carcinoma and anaplastic carcinoma of the thyroid: our institutional experience
Alessia Piermattei, Giuseppe Migliara, Angela Feraco, Carmine Bruno, Luisa Cioni, Qianqian Zhang, Belen Padial-Urtueta, Elisabetta Merenda, Guido Fadda, Marco Raffaelli, Luigi Maria Larocca, Antonino Mule, Alfredo Pontecorvi, Esther Diana Rossi
Virchows Archiv.2025; 487(3): 605. CrossRef
Chronic Lymphocytic Thyroiditis with Oncocytic Metaplasia Influences PD-L1 Expression in Papillary Thyroid Carcinoma
Vitor Barreto Santana, Vitória Machado Krüger, Maria Cristina Yunes Abrahão, Pietru Lentz Martins Cantú, Rosicler Luzia Brackmann, Gisele Moroni Pandolfi, Liane Scheffler Marisco, Gabriela Remonatto, Luciana Adolfo Ferreira, Marcia Silveira Graudenz
Head and Neck Pathology.2024;[Epub] CrossRef
Exploring markers of immunoresponsiveness in papillary thyroid carcinoma and future treatment strategies
Atish Mohanty, Michelle Afkhami, Amanda Reyes, Rebecca Pharaon, Holly Yin, Haiqing Li, Dana Do, Diana Bell, Arin Nam, Sue Chang, Thomas Gernon, Robert Kang, Arya Amini, Sagus Sampath, Prakash Kulkarni, Raju Pillai, Vicky Villaflor, Ravi Salgia, Ellie Magh
Journal for ImmunoTherapy of Cancer.2024; 12(7): e008505. CrossRef
Update regarding the role of PD-L1 in oncocytic thyroid lesions on cytological samples
Marco Dell'Aquila, Pietro Tralongo, Alessia Granitto, Maurizio Martini, Sara Capodimonti, Mariangela Curatolo, Vincenzo Fiorentino, Alfredo Pontecorvi, Guido Fadda, Celestino Pio Lombardi, Maco Raffaelli, Liron Pantanowitz, Luigi Maria Larocca, Esther Dia
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Analysis of anti‐apoptotic PVT1 oncogene and apoptosis‐related proteins (p53, Bcl2, PD‐1, and PD‐L1) expression in thyroid carcinoma
Afaf T. Ibrahiem, Amin K. Makhdoom, Khalid S. Alanazi, Abdulaziz M. Alanazi, Abdulaziz M. Mukhlef, Saad H. Elshafey, Eman A. Toraih, Manal S. Fawzy
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Wenyue Zhao, Lu Liu, Xuehao Li, Shun Xu
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Hashimoto’s Thyroiditis Minimizes Lymph Node Metastasis in BRAF Mutant Papillary Thyroid Carcinomas
Peter P. Issa, Mahmoud Omar, Yusef Buti, Chad P. Issa, Bert Chabot, Christopher J. Carnabatu, Ruhul Munshi, Mohammad Hussein, Mohamed Aboueisha, Mohamed Shama, Ralph L. Corsetti, Eman Toraih, Emad Kandil
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Identification and validation of an immune-related prognostic signature and key gene in papillary thyroid carcinoma
Rujia Qin, Chunyan Li, Xuemin Wang, Zhaoming Zhong, Chuanzheng Sun
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Marco Dell’Aquila, Alessia Granitto, Maurizio Martini, Sara Capodimonti, Alessandra Cocomazzi, Teresa Musarra, Vincenzo Fiorentino, Alfredo Pontecorvi, Celestino Pio Lombardi, Guido Fadda, Liron Pantanowitz, Luigi Maria Larocca, Esther Diana Rossi
Cancer Cytopathology.2020; 128(3): 177. CrossRef
Programmed Death-Ligand 1 (PD-L1) Is a Potential Biomarker of Disease-Free Survival in Papillary Thyroid Carcinoma: a Systematic Review and Meta-Analysis of PD-L1 Immunoexpression in Follicular Epithelial Derived Thyroid Carcinoma
Ilaria Girolami, Liron Pantanowitz, Ozgur Mete, Matteo Brunelli, Stefano Marletta, Chiara Colato, Pierpaolo Trimboli, Anna Crescenzi, Massimo Bongiovanni, Mattia Barbareschi, Albino Eccher
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Andrea Palermo, Andrea Napolitano, Daria Maggi, Anda Mihaela Naciu, Gaia Tabacco, Silvia Manfrini, Anna Crescenzi, Chiara Taffon, Francesco Pantano, Bruno Vincenzi, Guiseppe Tonini, Daniele Santini
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A potential biomarker hsa-miR-200a-5p distinguishing between benign thyroid tumors with papillary hyperplasia and papillary thyroid carcinoma
Xian Wang, Shan Huang, Xiaocan Li, Dongrui Jiang, Hongzhen Yu, Qiang Wu, Chaobing Gao, Zhengsheng Wu, Yi-Hsien Hsieh
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Papillary Thyroid Carcinoma Emerging from Hashimoto Thyroiditis Demonstrates Increased PD-L1 Expression, Which Persists with Metastasis
Daniel Lubin, Ezra Baraban, Amanda Lisby, Sahar Jalali-Farahani, Paul Zhang, Virginia Livolsi
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Chemotherapeutic Treatments Increase PD-L1 Expression in Esophageal Squamous Cell Carcinoma through EGFR/ERK Activation
Hoi Yan Ng, Jian Li, Lihua Tao, Alfred King-Yin Lam, Kwok Wah Chan, Josephine Mun Yee Ko, Valen Zhuoyou Yu, Michael Wong, Benjamin Li, Maria Li Lung
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Prognostic Significance of a Micropapillary Pattern in Pure Mucinous Carcinoma of the Breast: Comparative Analysis with Micropapillary Carcinoma: Hyun-Jung Kim, Kyeongmee Park, Jung Yeon Kim, Guhyun Kang, Geumhee Gwak, Inseok Park; J Pathol Transl Med. 2017;51(4):403-409. Published online June 9, 2017; DOI: https://doi.org/10.4132/jptm.2017.03.18

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Abstract PDF

Background
Mucinous carcinoma of the breast is an indolent tumors with a favorable prognosis; however, micropapillary features tend to lead to aggressive behavior. Thus, mucinous carcinoma and micropapillary carcinoma exhibit contrasting biologic behaviors. Here, we review invasive mucinous carcinoma with a focus on micropapillary features and correlations with clinicopathological factors.
Methods
A total of 64 patients with invasive breast cancer with mucinous or micropapillary features were enrolled in the study. Of 36 pure mucinous carcinomas, 17 (47.2%) had micropapillary features and were termed mucinous carcinoma with micropapillary features (MUMPC), and 19 (52.8%) had no micropapillary features and were termed mucinous carcinoma without micropapillary features. MUMPC were compared with 15 invasive micropapillary carcinomas (IMPC) and 13 invasive ductal and micropapillary carcinomas (IDMPC).
Results
The clinicopathological factors of pure mucinous carcinoma and MUMPC were not significantly different. In contrast to IMPC and IDMPC, MUMPC had a low nuclear grade, lower mitotic rate, higher expression of hormone receptors, negative human epidermal growth factor receptor 2 (HER2) status, lower Ki-67 proliferating index, and less frequent lymph node metastasis (p < .05). According to univariate analyses, progesterone receptor, HER2, T-stage, and lymph node metastasis were significant risk factors for overall survival; however, only T-stage remained significant in a multivariate analysis (p < .05).
Conclusions
In contrast to IMPC and IDMPC, the micropapillary pattern in mucinous carcinoma does not contribute to aggressive behavior. However, further analysis of a larger series of patients is required to clarify the prognostic significance of micropapillary patterns in mucinous carcinoma of the breast.

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Pure mucinous adenocarcinoma of the breast with the rare lymphoplasmacytic infiltration: A case report with review of literature
Yash Hasmukhbhai Prajapati, Vishal Bhabhor, Kahan Samirkumar Mehta, Mithoon Barot, Husen Boriwala, Mohamed Omar
Clinical Case Reports.2024;[Epub] CrossRef
Clinicopathological features and prognosis of mucinous breast carcinoma with a micropapillary structure
Beibei Yang, Menglu Shen, Bo Sun, Jing Zhao, Meng Wang
Thoracic Cancer.2024; 15(36): 2530. CrossRef
Expression of autocrine motility factor receptor (AMFR) in human breast and lung invasive micropapillary carcinomas
Jing Xu, Hongfei Ma, Qi Wang, Hui Zhang
International Journal of Experimental Pathology.2023; 104(1): 43. CrossRef
The Spectrum of Mucinous Lesions of the Breast
Upasana Joneja, Juan Palazzo
Archives of Pathology & Laboratory Medicine.2023; 147(1): 19. CrossRef
Pure Mucinous Carcinoma of the Breast: Radiologic-Pathologic Correlation
Cherie M Kuzmiak, Benjamin C Calhoun
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On Ultrasonographic Features of Mucinous Carcinoma with Micropapillary Pattern
Wei-Sen Yang, Yang Li, Ya Gao
Breast Cancer: Targets and Therapy.2023; Volume 15: 473. CrossRef
Micropapillary Breast Carcinoma: From Molecular Pathogenesis to Prognosis
Georgios-Ioannis Verras, Levan Tchabashvili, Francesk Mulita, Ioanna Maria Grypari, Sofia Sourouni, Evangelia Panagodimou, Maria-Ioanna Argentou
Breast Cancer: Targets and Therapy.2022; Volume 14: 41. CrossRef
Mucinous carcinoma of the breast: distinctive histopathologic and genetic characteristics
Minjung Jung
Kosin Medical Journal.2022; 37(3): 176. CrossRef
Triple-Positive Breast Carcinoma: Histopathologic Features and Response to Neoadjuvant Chemotherapy
Jennifer Zeng, Marcia Edelweiss, Dara S. Ross, Bin Xu, Tracy-Ann Moo, Edi Brogi, Timothy M. D'Alfonso
Archives of Pathology & Laboratory Medicine.2021; 145(6): 728. CrossRef
HER2 positive mucinous carcinoma of breast with micropapillary features: Report of a case and review of literature
Dinesh Chandra Doval, Rupal Tripathi, Sunil Pasricha, Pankaj Goyal, Chaturbhuj Agrawal, Anurag Mehta
Human Pathology: Case Reports.2021; 25: 200531. CrossRef
Sonographic Features of Pure Mucinous Breast Carcinoma With Micropapillary Pattern
Wu Zhou, Yong-Zhong Li, Li-Min Gao, Di-Ming Cai
Frontiers in Oncology.2021;[Epub] CrossRef
Clinicopathologic characteristics of HER2-positive pure mucinous carcinoma of the breast
Yunjeong Jang, Hera Jung, Han-Na Kim, Youjeong Seo, Emad Alsharif, Seok Jin Nam, Seok Won Kim, Jeong Eon Lee, Yeon Hee Park, Eun Yoon Cho, Soo Youn Cho
Journal of Pathology and Translational Medicine.2020; 54(1): 95. CrossRef
Mucinous carcinoma with micropapillary features is morphologically, clinically and genetically distinct from pure mucinous carcinoma of breast
Peng Sun, Zaixuan Zhong, Qianyi Lu, Mei Li, Xue Chao, Dan Chen, Wenyan Hu, Rongzhen Luo, Jiehua He
Modern Pathology.2020; 33(10): 1945. CrossRef
Micropapillary pattern in pure mucinous carcinoma of the breast – does it matter or not?
Xiaoli Xu, Rui Bi, Ruohong Shui, Baohua Yu, Yufan Cheng, Xiaoyu Tu, Wentao Yang
Histopathology.2019; 74(2): 248. CrossRef
An Update of Mucinous Lesions of the Breast
Beth T. Harrison, Deborah A. Dillon
Surgical Pathology Clinics.2018; 11(1): 61. CrossRef
The clinicopathological significance of micropapillary pattern in colorectal cancers
Jung-Soo Pyo, Mee Ja Park, Dong-Wook Kang
Human Pathology.2018; 77: 159. CrossRef
The sonographic findings of micropapillary pattern in pure mucinous carcinoma of the breast
Heqing Zhang, Li Qiu, Yulan Peng
World Journal of Surgical Oncology.2018;[Epub] CrossRef
Diagnostic dilemma of micropapillary variant of mucinous breast cancer
Geok Hoon Lim, Zhiyan Yan, Mihir Gudi
BMJ Case Reports.2018; 2018: bcr-2018-225775. CrossRef

Comparison of Unsatisfactory Samples from Conventional Smear versus Liquid-Based Cytology in Uterine Cervical Cancer Screening Test: Hoiseon Jeong, Sung Ran Hong, Seoung-Wan Chae, So-Young Jin, Hye Kyoung Yoon, Juhie Lee, Eun Kyung Kim, Sook Tai Ha, Sung Nam Kim, Eun-Jung Park, Jong Jae Jung, Sun Hee Sung, Sung-chul Lim; J Pathol Transl Med. 2017;51(3):314-319. Published online April 17, 2017; DOI: https://doi.org/10.4132/jptm.2017.03.17

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335 Download
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23 Crossref

Abstract PDF

Background
Cervical cytology for uterine cervical cancer screening has transitioned from conventional smear (CS) to liquid-based cytology (LBC), which has many advantages. The aim of this study was to compare the proportion of unsatisfactory specimens from CS versus LBC at multiple institutions including general hospitals and commercial laboratories.
Methods
Each participating institution provided a minimum of 500 Papanicolaou (Pap) test results for analysis. Pap tests were classified according to the participating institution (commercial laboratory or general hospital) and the processing method (CS, ThinPrep, SurePath, or CellPrep). The causes of unsatisfactory results were classified as technical problems, scant cellularity, or complete obscuring factors.
Results
A total of 38,956 Pap test results from eight general hospitals and three commercial laboratories were analyzed. The mean unsatisfactory rate of LBC was significantly lower than that of CS (1.26% and 3.31%, p = .018). In the LBC method, samples from general hospitals had lower unsatisfactory rates than those from commercial laboratories (0.65% vs 2.89%, p = .006). The reasons for unsatisfactory results were heterogeneous in CS. On the other hand, 66.2% of unsatisfactory results in LBC were due to the scant cellularity.
Conclusions
Unsatisfactory rate of cervical cancer screening test results varies according to the institution and the processing method. LBC has a significantly lower unsatisfactory rate than CS.

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Detection of Human Papillomavirus in Korean Breast Cancer Patients by Real-Time Polymerase Chain Reaction and Meta-Analysis of Human Papillomavirus and Breast Cancer: Jinhyuk Choi, Chungyeul Kim, Hye Seung Lee, Yoo Jin Choi, Ha Yeon Kim, Jinhwan Lee, Hyeyoon Chang, Aeree Kim; J Pathol Transl Med. 2016;50(6):442-450. Published online October 10, 2016; DOI: https://doi.org/10.4132/jptm.2016.07.08

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Abstract PDF

Background
Human papillomavirus (HPV) is a well-established oncogenic virus of cervical, anogenital, and oropharyngeal cancer. Various subtypes of HPV have been detected in 0% to 60% of breast cancers. The roles of HPV in the carcinogenesis of breast cancer remain controversial. This study was performed to determine the prevalence of HPV-positive breast cancer in Korean patients and to evaluate the possibility of carcinogenic effect of HPV on breast.
Methods
Meta-analysis was performed in 22 case-control studies for HPV infection in breast cancer. A total of 123 breast cancers, nine intraductal papillomas and 13 nipple tissues of patients with proven cervical HPV infection were tested by real-time polymerase chain reaction to detect 28 subtypes of HPV. Breast cancers were composed of 106 formalin-fixed and paraffin embedded (FFPE) breast cancer samples and 17 touch imprint cytology samples of breast cancers.
Results
The overall odds ratio between breast cancer and HPV infection was 5.43 (95% confidence interval, 3.24 to 9.12) with I² = 34.5% in meta-analysis of published studies with case-control setting and it was statistically significant. HPV was detected in 22 cases of breast cancers (17.9%) and two cases of intaductal papillomas (22.2%). However, these cases had weak positivity.
Conclusions
These results failed to serve as significant evidence to support the relationship between HPV and breast cancer. Further study with larger epidemiologic population is merited to determine the relationship between HPV and breast cancer.

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Do Helper T Cell Subtypes in Lymphocytic Thyroiditis Play a Role in the Antitumor Effect?: Seok Woo Yang, Seong-Ho Kang, Kyung Rae Kim, In Hong Choi, Hang Seok Chang, Young Lyun Oh, Soon Won Hong; J Pathol Transl Med. 2016;50(5):377-384. Published online September 15, 2016; DOI: https://doi.org/10.4132/jptm.2016.07.25

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Abstract PDF

Background
Papillary thyroid carcinoma (PTC) is frequently accompanied by lymphocytic thyroiditis (LT). Some reports claim that Hashimoto’s thyroiditis (the clinical form of LT) enhances the likelihood of PTC; however, others suggest that LT has antitumor activity. This study was aimed to find out the relationship between the patterns of helper T cell (Th) cytokines in thyroid tissue of PTC with or without LT and the clinicopathological manifestation of PTC.
Methods
Fresh surgical samples of PTC with (13 cases) or without (10 cases) LT were used. The prognostic parameters (tumor size, extra-thyroidal extension of PTC, and lymph node metastasis) were analyzed. The mRNA levels of two subtypes of Th cytokines, Th1 (tumor necrosis factor α [TNF-α], interferon γ [IFN-γ ], and interleukin [IL] 2) and Th2 (IL-4 and IL-10), were analyzed. Because most PTC cases were microcarcinomas and recent cases without clinical follow-up, negative or faint p27 immunoreactivity was used as a surrogate marker for lymph node metastasis.
Results
PTC with LT cases showed significantly higher expression of TNF-α (p = .043), IFN-γ (p < .010), IL-4 (p = .015) than those without LT cases. Although the data were not statistically significant, all analyzed cytokines (except for IL-4) were highly expressed in the cases with higher expression of p27 surrogate marker.
Conclusions
These results indicate that mixed Th1 (TNF-α, IFN-γ , and IL-2) and Th2 (IL-10) immunity might play a role in the antitumor effect in terms of lymph node metastasis.

Citations

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Papillary thyroid carcinoma with Hashimoto’s thyroiditis: impact and correlation
Shengpeng Yao, Hong Zhang
Frontiers in Endocrinology.2025;[Epub] CrossRef
Obesity and Thyroid Cancer Risk: An Update
Fabiana Franchini, Giuseppe Palatucci, Annamaria Colao, Paola Ungaro, Paolo Emidio Macchia, Immacolata Cristina Nettore
International Journal of Environmental Research and Public Health.2022; 19(3): 1116. CrossRef
Association between Hashimoto thyroiditis and clinical outcomes of papillary thyroid carcinoma: A meta-analysis
Qizhi Tang, Weiyu Pan, Liangyue Peng, Francis Moore
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Difference of the Nuclear Green Light Intensity between Papillary Carcinoma Cells Showing Clear Nuclei and Non-neoplastic Follicular Epithelia in Papillary Thyroid Carcinoma: Hyekyung Lee, Tae Hwa Baek, Meeja Park, Seung Yun Lee, Hyun Jin Son, Dong Wook Kang, Joo Heon Kim, Soo Young Kim; J Pathol Transl Med. 2016;50(5):355-360. Published online August 22, 2016; DOI: https://doi.org/10.4132/jptm.2016.05.19

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90 Download

Abstract PDF: Background
There is subjective disagreement regarding nuclear clearing in papillary thyroid carcinoma. In this study, using digital instruments, we were able to quantify many ambiguous pathologic features and use numeric data to express our findings.
Methods
We examined 30 papillary thyroid carcinomas. For each case, we selected representative cancer cells showing clear nuclei and surrounding non-neoplastic follicular epithelial cells and evaluated objective values of green light intensity (GLI) for quantitative analysis of nuclear clearing in papillary thyroid carcinoma.
Results
From 16,274 GLI values from 600 cancer cell nuclei and 13,752 GLI values from 596 non-neoplastic follicular epithelial nuclei, we found a high correlation of 94.9% between GLI and clear nuclei. GLI between the cancer group showing clear nuclei and non-neoplastic follicular epithelia was statistically significant. The overall average level of GLI in the cancer group was over two times higher than the non-neoplastic group despite a wide range of GLI. On a polygonal line graph, there was a fluctuating unique difference between both the cancer and non-neoplastic groups in each patient, which was comparable to the microscopic findings.
Conclusions
Nuclear GLI could be a useful factor for discriminating between carcinoma cells showing clear nuclei and non-neoplastic follicular epithelia in papillary thyroid carcinoma.

Case Study

A Rare Case of Recurrent Metastatic Solid Pseudopapillary Neoplasm of the Pancreas: Hye Seung Lee, Han Kyeom Kim, Bong Kyung Shin, Jin Hyuk Choi, Yoo Jin Choi, Ha Yeon Kim; J Pathol Transl Med. 2017;51(1):87-91. Published online August 6, 2016; DOI: https://doi.org/10.4132/jptm.2016.06.16

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Abstract PDF

A 61-year-old woman visited our hospital for bilateral multiple lung nodules and a mass in her thorax. She had a long history of multiple metastatic recurrences of solid pseudopapillary neoplasm (SPN); 24 years previously, the patient had undergone pylorus-preserving pancreaticoduodenectomy for a 9.9 × 8.6 cm mass in the pancreatic head. The tumor was diagnosed as an SPN. Nine years later, metastatic nodules were found on computed tomography in the patient’s liver and peritoneum and were excised. She subsequently underwent an additional eight metastatectomy procedures in diverse organs. For the presented event, the lung nodules were removed. The prevalence of malignant SPN in the general population is 5%–15%. However, multiple metastatic recurrence of malignant SPN is rare; the lung is a particularly rare site of metastasis, found in only three cases in the literature. Here, we describe this exceptional case and provide a literature review.

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Curative Resection for Metastatic Solid Pseudopapillary Neoplasm of Pancreas—a Case Series
Aparna M. Jagannathan, Manbha L. Rymbai, Abhilasha Anand, Anoop Paul, Borna Das, Thomas Alex Kodiatte, Frederick L. Vyas, Ravish Sanghi Raju, Philip Joseph
Indian Journal of Surgical Oncology.2024; 15(S2): 232. CrossRef
Malignant Solid Pseudopapillary Neoplasm of the Pancreas: An Orthogonal Analysis
Andrew M. Fleming, Leah E. Hendrick, Danny Yakoub, Hafeez Abdelhafeez, Jeremiah L. Deneve, Max R. Langham, Evan S. Glazer, Andrew M. Davidoff, Nipun B. Merchant, Paxton V. Dickson, Andrew J. Murphy
Annals of Surgical Oncology.2024; 31(1): 475. CrossRef
A Unique Presentation of Solid Pseudopapillary Neoplasm of the Pancreas Requiring Pancreaticoduodenectomy Without Pancreatojejunostomy: A Case Report and Literature Review
Alexis L Carmona, Sameh A Fayek
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Case report: Clinical analysis and literature review of five cases of metastatic solid pseudopapillary tumor of the pancreas
Run Hu, Renjie Gui, Xi Nie, Huaxin Duan
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Case of Treatment of Solid Pseudopapillary Pancreatic Tumor
F. S. Rakhimova, N. D. Mamashev, O. A. Shimkina, B. Kh. Bebezov
Creative surgery and oncology.2023; 13(2): 178. CrossRef
Diagnosis and treatment of solid pseudopapillary neoplasm of the pancreas in children: A report of 18 cases
Ayiguzaili Maimaijiang, Haiyun Wang, Wanfu Li, Yaqi Wang
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Large tumor size, lymphovascular invasion, and synchronous metastasis are associated with the recurrence of solid pseudopapillary neoplasms of the pancreas
Goeun Lee, You-Na Sung, Sung Joo Kim, Jae Hoon Lee, Ki-Byung Song, Dae Wook Hwang, Jihun Kim, Sang Soo Lee, Song Cheol Kim, Seung-Mo Hong
HPB.2021; 23(2): 220. CrossRef
Solid-Pseudopapillary Neoplasm of the Pancreas: A 63-Case Analysis of Clinicopathologic and Immunohistochemical Features and Risk Factors of Malignancy
Hongchun Chen, Yuchen Huang, Ningning Yang, Wentian Yan, Ruxue Yang, Shan Zhang, Panpan Yang, Nan Li, Zhenzhong Feng
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Minimally Invasive Approach for Pancreatic Solid Pseudopapillary Neoplasm and Initially Undiagnosed Slowly Progressing Liver Tumor
Shohei Takaichi, Yoshifumi Iwagami, Shogo Kobayashi, Yoshito Tomimaru, Hirofumi Akita, Tadafumi Asaoka, Takehiro Noda, Kunihito Gotoh, Masaki Mori, Yuichiro Doki, Hidetoshi Eguchi
Pancreas.2020; 49(8): e70. CrossRef
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The Stomach: a Rare Site for Metastatic Solid Pseudopapillary Neoplasm of the Pancreas
Prajwala S. Prakash, Dexter Yak Seng Chan, Krishnakumar Madhavan
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European evidence-based guidelines on pancreatic cystic neoplasms

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Original Articles

Clinical Significance of an HPV DNA Chip Test with Emphasis on HPV-16 and/or HPV-18 Detection in Korean Gynecological Patients: Min-Kyung Yeo, Ahwon Lee, Soo Young Hur, Jong Sup Park; J Pathol Transl Med. 2016;50(4):294-299. Published online June 26, 2016; DOI: https://doi.org/10.4132/jptm.2016.05.09

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Abstract PDF

Background
Human papillomavirus (HPV) is a major risk factor for cervical cancer.
Methods
We evaluated the clinical significance of the HPV DNA chip genotyping assay (MyHPV chip, Mygene Co.) compared with the Hybrid Capture 2 (HC2) chemiluminescent nucleic acid hybridization kit (Digene Corp.) in 867 patients.
Results
The concordance rate between the MyHPV chip and HC2 was 79.4% (kappa coefficient, κ = 0.55). The sensitivity and specificity of both HPV tests were very similar (approximately 85% and 50%, respectively). The addition of HPV result (either MyHPV chip or HC2) to cytology improved the sensitivity (95%, each) but reduced the specificity (approximately 30%, each) compared with the HPV test or cytology alone. Based on the MyHPV chip results, the odds ratio (OR) for ≥ high-grade squamous intraepithelial lesions (HSILs) was 9.9 in the HPV-16/18 (+) group and 3.7 in the non-16/18 high-risk (HR)-HPV (+) group. Based on the HC2 results, the OR for ≥ HSILs was 5.9 in the HR-HPV (+) group. When considering only patients with cytological diagnoses of “negative for intraepithelial lesion or malignancy” and “atypical squamous cell or atypical glandular cell,” based on the MyHPV chip results, the ORs for ≥ HSILs were 6.8 and 11.7, respectively, in the HPV-16/18 (+) group.
Conclusions
The sensitivity and specificity of the MyHPV chip test are similar to the HC2. Detecting HPV-16/18 with an HPV DNA chip test, which is commonly used in many Asian countries, is useful in assessing the risk of high-grade cervical lesions.

Citations

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Human papilloma virus identification in ocular surface squamous neoplasia by p16 immunohistochemistry and DNA chip test
Tina Shrestha, Won Choi, Ga Eon Kim, Jee Myung Yang, Kyung Chul Yoon
Medicine.2019; 98(2): e13944. CrossRef
Comparison of the PANArray HPV Genotyping Chip Test with the Cobas 4800 HPV and Hybrid Capture 2 Tests for Detection of HPV in ASCUS Women
Eun Young Ki, Yoon Kyung Lee, Ahwon Lee, Jong Sup Park
Yonsei Medical Journal.2018; 59(5): 662. CrossRef

Detection of Tumor Multifocality Is Important for Prediction of Tumor Recurrence in Papillary Thyroid Microcarcinoma: A Retrospective Study and Meta-Analysis: Jung-Soo Pyo, Jin Hee Sohn, Guhyun Kang; J Pathol Transl Med. 2016;50(4):278-286. Published online June 6, 2016; DOI: https://doi.org/10.4132/jptm.2016.03.29

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23 Web of Science
26 Crossref

Abstract PDF

Background
The clinicopathological characteristics and conclusive treatment modality for multifocal papillary thyroid microcarcinoma (mPTMC) have not been fully established.
Methods
A retrospective study, systematic review, and meta-analysis were conducted to elucidate the clinicopathological significance of mPTMC. We investigated the multiplicity of 383 classical papillary thyroid microcarcinomas (PTMCs) and the clinicopathological significance of incidental mPTMCs. Correlation between tumor recurrence and multifocality in PTMCs was evaluated through a systematic review and meta-analysis.
Results
Tumor multifocality was identified in 103 of 383 PTMCs (26.9%). On linear regression analysis, primary tumor diameter was significantly correlated with tumor number (R²=0.014, p=.021) and supplemental tumor diameter (R²=0.117, p=.023). Of 103 mPTMCs, 61 (59.2%) were non-incidental, with tumor detected on preoperative ultrasonography, and 42 (40.8%) were diagnosed (incidental mPTMCs) on pathological examination. Lymph node metastasis and higher tumor stage were significantly correlated with tumor multifocality. However, there was no difference in nodal metastasis or tumor stage between incidental and non-incidental mPTMCs. On meta-analysis, tumor multifocality was significantly correlated with tumor recurrence in PTMCs (odds ratio, 2.002; 95% confidence interval, 1.475 to 2.719, p<.001).
Conclusions
Our results show that tumor multifocality in PTMC, regardless of manner of detection, is significantly correlated with aggressive tumor behavior.

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Ke-cheng Jiang, Bei Lin, Yu Zhang, Ling-qian Zhao, Ding-cun Luo
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Hyemi Kwon, Min Ji Jeon, Won Gu Kim, Suyeon Park, Mijin Kim, Tae Yong Kim, Minkyu Han, Dong Eun Song, Tae-Yon Sung, Jong Ho Yoon, Suck Joon Hong, Jin-Sook Ryu, Young Kee Shong, Won Bae Kim
Annals of Surgical Oncology.2017; 24(9): 2596. CrossRef
Radioactive Iodine Ablation Decrease Recurrences in Papillary Thyroid Microcarcinoma with Lateral Lymph Node Metastasis in Chinese Patients
Shuai Xue, Peisong Wang, Jia Liu, Guang Chen
World Journal of Surgery.2017; 41(12): 3139. CrossRef
The Prognostic Value of Tumor Multifocality in Clinical Outcomes of Papillary Thyroid Cancer
Fei Wang, Xiaolong Yu, Xiaopei Shen, Guangwu Zhu, Yueye Huang, Rengyun Liu, David Viola, Rossella Elisei, Efisio Puxeddu, Laura Fugazzola, Carla Colombo, Barbara Jarzab, Agnieszka Czarniecka, Alfred K Lam, Caterina Mian, Federica Vianello, Linwah Yip, Gar
The Journal of Clinical Endocrinology & Metabolism.2017; 102(9): 3241. CrossRef
Evaluation of surgical results of micropapillary thyroid cancers according to tumor size and focality
Bekir Uçan, Muhammed Erkam Sencar, Muhammed Kızılgül, Mustafa Özbek, İlknur Öztürk Ünsal, Erman Çakal
Ortadoğu Tıp Dergisi.2017; 9(3): 123. CrossRef
Contrastive study of two screening criteria for active surveillance in patients with low-risk papillary thyroid microcarcinoma: a retrospective analysis of 1001 patients
Kai Qian, Kai Guo, Xiaoke Zheng, Tuanqi Sun, Duanshu Li, Yi Wu, Qinghai Ji, Zhuoying Wang
Oncotarget.2017; 8(39): 65836. CrossRef
10.1016/j.bjorlp.2018.01.005

CrossRef Listing of Deleted DOIs.2000;[Epub] CrossRef

Comparison of Analytical and Clinical Performance of HPV 9G DNA Chip, PANArray HPV Genotyping Chip, and Hybrid-Capture II Assay in Cervicovaginal Swabs: Ho Young Jung, Hye Seung Han, Hyo Bin Kim, Seo Young Oh, Sun-Joo Lee, Wook Youn Kim; J Pathol Transl Med. 2016;50(2):138-146. Published online January 13, 2016; DOI: https://doi.org/10.4132/jptm.2015.10.21

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Abstract PDF

Background
Human papillomavirus (HPV) infection can be detected by using several molecular methods, including Hybrid-Capture II (HC2) assay and variable HPV DNA chip tests, although each method has different sensitivities and specificities. Methods: We performed HPV 9G DNA Chip (9G) and PANArray HPV Genotyping Chip (PANArray) tests on 118 cervicovaginal swabs and compared the results with HC2, cytology, histology, and direct sequencing results. Results: The overall and high-risk HPV (HR-HPV) positivity rates were 62.7% and 44.9% using 9G, and 61.0% and 30.5% using PANArray, respectively. The positivity rates for HR-HPV with these two chips were significantly lower than 55.1% when HC2 was used. The sensitivity of overall HPV positivity in detecting histologically confirmed low-grade cervical squamous intraepithelial lesions or higher was 88.7% for all three tests. The specificity was 58.5% for 9G and 61.5% for PANArray, which was significantly lower than the 72.3% for HC2. With the HR-HPV⁺ genotype threshold, the sensitivity decreased to 75.5% for 9G and 52.8% for PANArray, which was significantly lower than the 88.7% for HC2. Comparison of the two chips showed concordant results in 55.1% of the samples, compatible results in 16.9%, and discordant results in 28.0%, exhibiting poor agreement in detecting certain HPV genotypes. Compared with direct sequencing, 9G yielded no discordant results, whereas PANArray yielded 31 discordant results (26.7%). Conclusions: Compared with HC2, the HPV genotyping tests showed lower sensitivity in histologic correlation. When the two chips were compared, the 9G was more sensitive and accurate for detecting HR-HPV than the PANArray.

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Concordance of Anyplex™ II HPV HR assays with reference HPV assays in cervical cancer screening: Systematic review
Habtamu Biazin
Journal of Virological Methods.2022; 301: 114435. CrossRef
The clinical performance of human papillomavirus genotyping using PANArray HPV chip: Comparison to ThinPrep cytology alone and co-testing
Jiyoung Kim, Sun-Young Jun, Lee-So Maeng
Pathology - Research and Practice.2020; 216(9): 153121. CrossRef
Analytic performance of PANArray HPV and HPV 9G DNA chip tests for genotyping of high-risk human papillomavirus in cervical ThinPrep PreservCyt samples
Jiyoung Kim, Sun-Young Jun, Magdalena Grce
PLOS ONE.2019; 14(10): e0224483. CrossRef

Parafibromin Staining Characteristics in Urothelial Carcinomas and Relationship with Prognostic Parameters: Serap Karaarslan, Banu Yaman, Hakan Ozturk, Banu Sarsik Kumbaraci; J Pathol Transl Med. 2015;49(5):389-395. Published online September 15, 2015; DOI: https://doi.org/10.4132/jptm.2015.08.10

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Abstract PDF

Background
Parafibromin is a recently defined tumor suppressor gene. The aim of our study was to determine the relationships of parafibromin expression in urothelial carcinomas (UCs) with prognostic parameters and to evaluate the use of parafibromin as a potential marker of UC. Methods: Parafibromin expression was assessed in 49 UC specimens using immunohistochemistry. The correlations between parafibromin expression and clinical and pathologic parameters were investigated. Results: Of the patients, 42 (85.7%) were male, and the mean age was 69.6 ± 8.2 years (range, 54 to 88 years). Morphologically, the UCs were divided into two groups: papillary (n = 27) and non-papillary (n = 22). There were seven low-grade (14.3%) and 42 high-grade (85.7%) tumors. Parafibromin was negative in 13 tumors (26.5%), partially positive in 19 tumors (38.8%), and positive in 17 tumors (34.7%). Parafibromin expression was more negative in UCs from upper urinary locations (n=17) and with muscularis propria invasion (n=28), which was statistically significant (p = .009 and p = .007, respectively). There was no statistically significant relationship between parafibromin expression and gender, age, tumor grade, survival, or disease-free survival. Conclusions: We found that UC cases with parafibromin positivity had less of a tendency to show muscularis propria invasion and were more commonly located in the lower urinary system. These results need to be confirmed with studies based on larger case series.

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The roles of the tumor suppressor parafibromin in cancer
Hua-chuan Zheng, Hang Xue, Cong-yu Zhang
Frontiers in Cell and Developmental Biology.2022;[Epub] CrossRef
Prognostic role of parafibromin staining and CDC73 mutation in patients with parathyroid carcinoma: A systematic review and meta‐analysis based on individual patient data
Ruizhe Zhu, Zixing Wang, Ya Hu
Clinical Endocrinology.2020; 92(4): 295. CrossRef
Thein vitroandin vivoeffects of nuclear and cytosolic parafibromin expression on the aggressive phenotypes of colorectal cancer cells: a search of potential gene therapy target
Hua-chuan Zheng, Jia-jie Liu, Jing Li, Ji-cheng Wu, Lei Yang, Gui-feng Zhao, Xin Zhao, Hua-mao Jiang, Ke-qiang Huang, Zhi-jie Li
Oncotarget.2017; 8(14): 23603. CrossRef
The clinicopathological and prognostic significances ofCDC73expression in cancers: a bioinformatics analysis
Hua-Chuan Zheng, Bao-Cheng Gong, Shuang Zhao
Oncotarget.2017; 8(56): 95270. CrossRef
Significance of Parafibromin Expression in Laryngeal Squamous Cell Carcinomas
Inju Cho, Mija Lee, Sharon Lim, Ran Hong
Journal of Pathology and Translational Medicine.2016; 50(4): 264. CrossRef

Comparison of Cytologic Characteristics between Adenoid Cystic Carcinoma and Adenoid Basal Carcinoma in the Uterine Cervix: Juhyeon Jeong, Seung Yeon Ha, Hyun Yee Cho, Dong Hae Chung, Jungsuk An; J Pathol Transl Med. 2015;49(5):396-402. Published online August 17, 2015; DOI: https://doi.org/10.4132/jptm.2015.07.08

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Background
Adenoid cystic carcinoma (ACC) and adenoid basal carcinoma (ABC) are rare in the uterine cervix. ACC is more aggressive than ABC, thus accurate differential diagnosis is important. In this study, we identified cytologic features useful in distinguishing these two tumors for diagnosis. Methods: Three cases of ACC and five cases of ABC were selected for this study. Cervicovaginal smear slides were reviewed retrospectively, and the area, circumference, major axis, and minor axis of nuclei were measured using an image analyzer. Results: ACC displayed three-dimensional clusters with a small acini pattern. ABC displayed peripheral palisading without an acini pattern. The nuclei of ACC were more irregular and angulated than those of ABC, and the former showed a coarsely granular chromatin pattern. The nucleic area, circumference, major axis, and minor axis were 18.556±8.665 µm², 23.320±11.412 µm, 5.664±1.537 µm, and 4.127±1.107 µm in ACC and 11.017±4.440 µm², 15.920±5.664 µm, 4.612±1.025 µm, and 3.088±0.762 µm in the cases of ABC. All measured values showed statistically significant difference (p < .001). Conclusions: Although the nuclei of both of these tumor types were oval shaped, inferred from the ratio of minor axis to major axis (0.728 in ACC and 0.669 in ABC), the area of nuclei was approximately 1.7 times larger in ACC than in ABC. Distinguishing nucleic features, including area, morphology, and chromatin pattern, may be helpful in making a correct diagnosis.

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Adenoid basal carcinoma of the uterine cervix
Anas Mohamed, Tesfalem Korga, Ahlam Ali, Javier Laurini
International Journal of Gynecological Cancer.2025; : 101873. CrossRef
Adenoid Basal Carcinoma of the Uterine Cervix: A Case Report
Tatsuya Kanuma, Keiko Kigure, Tosio Nishimura, Yuji Ibuki, Shigeru Tsuchida, Harumi Kamiyama, Misa Iijima, Kazuto Nakamura
The KITAKANTO Medical Journal.2016; 66(1): 11. CrossRef

Case Study

Fallopian Metaplastic Papillary Tumour: An Atypical Transdifferentiation of the Tubal Epithelium?: Miguel Fdo. Salazar, Isaías Estrada Moscoso, Lorena Troncoso Vázquez, Nubia Leticia López García, Paola Andrea Escalante Abril; J Pathol Transl Med. 2015;49(2):148-155. Published online March 12, 2015; DOI: https://doi.org/10.4132/jptm.2014.10.15

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Abstract PDF

A metaplastic papillary tumor of the Fallopian tube is an extremely uncommon condition, with odd and confusing features that make it difficult to categorize as benign or borderline. Here, we summarize all the published cases to date and document the case of a 41-year-old woman diagnosed with this alteration after her last childbirth and ensuing tubal ligation. One of the tubes was bulky and filled with a caramel-like substance encircling a blurry spot. Light microscopy detailed a slender stalk covered by eosinophilic, columnar plump cells, showing atypical nuclei and focal budding. Mitotic figures were absent. The immunohistochemistry panel was positive for pan-cytokeratin, epithelial membrane antigen, cyclin D1, and hormone receptors. Additionally, a proliferation index of less than 5% was rated using Ki-67. The true nature of this tumor (reactive vs neoplastic) is uncertain. Nonetheless, its association with pregnancy suggests an adaptive change, likely similar to the atypical transdifferentiation proposed for Arias-Stella reaction.

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Angelina Vlaški, Vanessa Neukunft, Andrea Maria Gassel, Frederick Klauschen, Doris Mayr
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Fallopian tube papilloma
Shashank Mishra, Prerna Guleria
Indian Journal of Pathology and Microbiology.2021; 64(3): 608. CrossRef
Metaplastic papillary tumour of the fallopian tube, a rare entity, analysed by next‐generation sequencing
Sandra Sunitsch, Julia Reisinger, Luca Abete, Karl Kashofer, Peter Regitnig
Histopathology.2020; 76(6): 923. CrossRef

Brief Case Reports

The Limitations of Endoscopic Ultrasound-Guided Fine Needle Aspiration Cytology in the Diagnosis of Pancreatic Serous Cystadenoma: A Brief Case Report: Heae Surng Park, Sun Och Yoon, Beom Jin Lim, Joo Hee Kim, Soon Won Hong; Korean J Pathol. 2014;48(5):405-408. Published online October 27, 2014; DOI: https://doi.org/10.4132/KoreanJPathol.2014.48.5.405

8,493 View
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PDF

Pulmonary Hodgkin Lymphoma in a Patient with Crohn’s Disease: Jae-Young Park, Juhie Lee; Korean J Pathol. 2014;48(5):387-389. Published online October 27, 2014; DOI: https://doi.org/10.4132/KoreanJPathol.2014.48.5.387

7,939 View
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PDF

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The Complex Relationship between Mechanisms Underlying Inflammatory Bowel Disease, Its Treatment, and the Risk of Lymphomas: A Comprehensive Review
Katarzyna Stasik, Rafał Filip
International Journal of Molecular Sciences.2024; 25(8): 4241. CrossRef
Extra-intestinal malignancies in inflammatory bowel diseases: An update with emphasis on MDCT and MR imaging features
A. Dohan, S.A. Faraoun, M. Barral, Y. Guerrache, M. Boudiaf, X. Dray, C. Hoeffel, M. Allez, O. Farges, L. Beaugerie, T. Aparicio, P. Marteau, E.K. Fishman, O. Lucidarme, C. Eveno, M. Pocard, R. Dautry, P. Soyer
Diagnostic and Interventional Imaging.2015; 96(9): 871. CrossRef

Case Studies

Recurrent Thyroid Papillary Carcinoma in Children Under Ten Years Old: Report of Two Cases and Literature Review: Byeong-Joo Noh, Ji-Youn Sung, Youn-Wha Kim, Yong-Koo Park; Korean J Pathol. 2014;48(4):297-301. Published online August 26, 2014; DOI: https://doi.org/10.4132/KoreanJPathol.2014.48.4.297

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Abstract PDF

Papillary thyroid carcinoma (PTC) in children under ten years old is very rare. To date, 18 cases of PTC in children under ten years old (including our two cases) have been reported in Korea. Here, we describe two cases of recurrent PTC with follicular variant and conventional type in an 8-year-old boy and a 7-year-old boy, respectively, and discuss clinicopathologic and molecular characteristics that differ in pediatric patients from adults.

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Extremely Well-Differentiated Papillary Thyroid Carcinoma Resembling Adenomatous Hyperplasia Can Metastasize to the Skull: A Case Report
Ju Yeon Pyo, Jisup Kim, Sung-eun Choi, Eunah Shin, Seok-Woo Yang, Cheong Soo Park, Seok-Mo Kim, SoonWon Hong
Yonsei Medical Journal.2017; 58(1): 255. CrossRef

Well-Differentiated Papillary Mesothelioma of the Tunica Vaginalis: A Case Study and Review of the Literature: Seyda Erdogan, Arbil Acikalin, Handan Zeren, Gulfılız Gonlusen, Suzan Zorludemir, Volkan Izol; Korean J Pathol. 2014;48(3):225-228. Published online June 26, 2014; DOI: https://doi.org/10.4132/KoreanJPathol.2014.48.3.225

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Abstract PDF

Well-differentiated papillary mesothelioma is an uncommon tumor of the testes that usually presents as a hydrocele. Here, we present the case of one patient who did not have a history of asbestos exposure. The tumor was localized in the tunica vaginalis and was composed of three pedunculated masses macroscopically. Microscopically, branching papillary structures with focal coagulative necrosis were present. In addition to immunohistochemistry, simian virus 40 DNA was also tested by polymerase chain reaction. This report presents one case of this rare entity, its clinical and macroscopic features, and follow-up results.

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Cancer Treatment and Research Communications.2026; 47: 101137. CrossRef
Testicular/paratesticular mesothelial tumours: Uncommon histopathologic entities in a very complex anatomical site
Francesca Pagliuca, Stefano Lucà, Marco De Sio, Davide Arcaniolo, Gaetano Facchini, Marco De Martino, Francesco Esposito, Ferdinando DE Vita, Paolo Chieffi, Renato Franco
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Well-differentiated Papillary Mesothelial Tumour of the Tunica Vaginalis Testis – A Rare Lesion, but one Pathologists Should Know About Two Patient Reports and a Review of the Literature
Johannes Kläger, Felicitas Oberndorfer, Cristophe Brunel, Julian Veser, Eva Compérat
International Journal of Surgical Pathology.2023; 31(6): 1126. CrossRef
A diagnostic approach to paratesticular lesions with tubulopapillary architecture: a series of 16 serous borderline tumors/low-grade serous carcinoma and 14 well-differentiated papillary mesothelial tumors and mesothelioma
Rabia Zafar, Lacey J. Schrader, John C. Cheville, J. Kenneth Schoolmeester, Anja C. Roden, Marie-Christine Aubry, Eunhee S. Yi, Aditya Raghunathan, Loren Herrera-Hernandez, R. Houston Thompson, Stephen A. Boorjian, Bradley C. Leibovich, Gary L. Keeney, Ra
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Mesothelioma subtypes of the tunica vaginalis: a rare case report and review of histological criteria
Cutts Rebecca, Martin J Connor, Luxi Sun, Thomas Johnston, Rachel Gooch, John McLoughlin
Journal of Surgical Case Reports.2019;[Epub] CrossRef
Well‐differentiated papillary mesothelioma of tunica vaginalis testis of unknown malignant potential: Sonographic appearance
K.W.S. Ko, K.S. Tse, K.W. Shek, M.N. Hau, S.H. Ting
Journal of Clinical Ultrasound.2018; 46(5): 364. CrossRef
Tunica Vaginalis Thickening, Hemorrhagic Infiltration and Inflammatory Changes in 8 Children with Primary Hydrocele; Reactive Mesothelial Hyperplasia? A Prospective Clinical Study
Ioannis Patoulias, Evangelia Rachmani, Maria Kalogirou, Kyriakos Chatzopoulos, Dimitrios Patoulias
Acta Medica (Hradec Kralove, Czech Republic).2018; 61(2): 41. CrossRef
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Case Reports in Oncological Medicine.2017;[Epub] CrossRef
Well-differentiated Papillary Mesothelioma of the Tunica Vaginalis
Wei Keith Tan, Mae-Yen Tan, Hui Meng Tan, Rajadurai Pathmanathan, Wei Phin Tan
Urology.2016; 90: e7. CrossRef
Well-Differentiated Papillary Mesothelioma of the Tunica Vaginalis: Case Report and Systematic Review of Literature
Wei Keith Tan, Mae-Yen Tan, Wei Shen Tan, Soon Ching Gan, Rajadurai Pathmanathan, Hui Meng Tan, Wei Phin Tan
Clinical Genitourinary Cancer.2016; 14(4): e435. CrossRef
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Robert R. Maronpot, Abraham Nyska, Jennifer E. Foreman, Yuval Ramot
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Original Articles

Tumor Sprouting in Papillary Thyroid Carcinoma Is Correlated with Lymph Node Metastasis and Recurrence: Eunjung Lee, Wonkyung Jung, Jeong-Soo Woo, Jae Bok Lee, Bong Kyung Shin, Han Kyeom Kim, Aeree Kim, Baek-hui Kim; Korean J Pathol. 2014;48(2):117-125. Published online April 28, 2014; DOI: https://doi.org/10.4132/KoreanJPathol.2014.48.2.117

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Abstract PDF

Background

Identification of poor prognostic factors in papillary thyroid carcinoma (PTC) patients is important for the patients' care and follow-up. We can sometimes see small tumor clusters without desmoplasia and no evidence of lymphatic emboli around the main tumor mass of PTC. We termed this form of tumor clustering, 'tumor sprouting,' and determined whether these tumors correlate with lymphovascular invasion, lymph node metastasis, and recurrence.

Methods

We analyzed a total of 204 cases of papillary thyroid macrocarcinoma. Number, size and distance from the main tumor of the tumor sprouting were observed and analyzed with clinicopathologic characteristics.

Results

Tumor sprouting was observed in 101 patients. Presence of tumor sprouting was significantly associated with positive resection margin (p=.002), lymphovascular invasion (p=.001), lymph node metastasis (p<.001), and recurrence (p=.004). Univariate analysis of recurrence-free survival revealed that tumor multiplicity (p=.037), positive resection margin (p=.007), lymphovascular invasion (p=.004), lymph node metastasis (p<.001), and tumor sprouting (p=.004) were poor prognostic factors. In multivariate analysis, positive resection margin was an independent poor prognostic factor of recurrence.

Conclusions

In conclusion, tumor sprouting is significantly correlated with lymph node metastasis and recurrence. Evaluation of tumor sprouting in PTC patients could be helpful in predicting tumor recurrence or lymph node metastasis.

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The Initial Risk Stratification System for Differentiated Thyroid Cancer: Key Updates in the 2024 Korean Thyroid Association Guideline
Shinje Moon, Young Shin Song, Kyong Yeun Jung, Eun Kyung Lee, Jeongmin Lee, Dong-Jun Lim, Chan Kwon Jung, Young Joo Park
Endocrinology and Metabolism.2025; 40(3): 357. CrossRef
Korean Thyroid Association Guidelines on the Management of Differentiated Thyroid Cancers; Part I. Initial Management of Differentiated Thyroid Cancers - Chapter 5. Evaluation of Recurrence Risk Postoperatively and Initial Risk Stratification in Different
Eun Kyung Lee, Young Shin Song, Ho-Cheol Kang, Sun Wook Kim, Dong Gyu Na, Shin Je Moon, Dong-Jun Lim, Kyong Yeun Jung, Yun Jae Chung, Chan Kwon Jung, Young Joo Park
International Journal of Thyroidology.2024; 17(1): 68. CrossRef
Significance of Lymphovascular Invasion as a Prognostic Factor in Patients with Papillary Thyroid Cancer: a Systematic Review and Meta-Analysis
Ho-Ryun Won, Bon Seok Koo
International Journal of Thyroidology.2023; 16(2): 157. CrossRef
Peripheral Versus Intraparenchymal Papillary Thyroid Microcarcinoma: Different Morphologies and PD-L1 Expression
Bozidar Kovacevic, Dragana Vucevic, Snezana Cerovic, Catarina Eloy
Head and Neck Pathology.2022; 16(1): 200. CrossRef
Lymphovascular invasion and risk of recurrence in papillary thyroid carcinoma
Katy Wagner, Earl Abraham, Bryan Tran, David Roshan, James Wykes, Peter Campbell, Ardalan Ebrahimi
ANZ Journal of Surgery.2020; 90(9): 1727. CrossRef
The Predictors of Multicentricity in Well-Differentiated Thyroid Cancer
Mohamed Hegazi, Waleed El Nahas, Mohamed Elmetwally, Amr Hassan, Waleed Gado , Islam Abdou, Ahmed Senbel, Mohamed Samir Abou-Sheishaa
Journal of Analytical Oncology.2018; 7(4): 65. CrossRef
Prognostic impact of vascular invasion in differentiated thyroid carcinoma: a systematic review and meta-analysis
Huy Gia Vuong, Tetsuo Kondo, Uyen N P Duong, Thong Quang Pham, Naoki Oishi, Kunio Mochizuki, Tadao Nakazawa, Lewis Hassell, Ryohei Katoh
European Journal of Endocrinology.2017; 177(2): 207. CrossRef
Detection of Tumor Multifocality Is Important for Prediction of Tumor Recurrence in Papillary Thyroid Microcarcinoma: A Retrospective Study and Meta-Analysis
Jung-Soo Pyo, Jin Hee Sohn, Guhyun Kang
Journal of Pathology and Translational Medicine.2016; 50(4): 278. CrossRef

Uncommon and Rare Human Papillomavirus Genotypes Relating to Cervical Carcinomas: Na Rae Kim, Myunghee Kang, Soon Pyo Lee, Hyunchul Kim, Jungsuk An, Dong Hae Chung, Seung Yeon Ha, Hyun Yee Cho; Korean J Pathol. 2014;48(1):43-49. Published online February 25, 2014; DOI: https://doi.org/10.4132/KoreanJPathol.2014.48.1.43

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Abstract PDF

Background

Human papillomavirus (HPV) is an oncogenic virus in cervical cancer and most invasive carcinomas (ICs) are caused by HPV16 and 18. However, the roles and contributions of other uncommon and rare genotypes remain uncertain.

Methods

HPV genotypes were retrospectively assessed using an HPV DNA chip that can specify up to 32 HPV genotypes. We arbitrarily regarded genotypes accounting for less than 6% of the total as uncommon and rare genotypes.

Results

A total of 3,164 HPV-positive cases were enrolled. In groups 2A, 2B, 3, and unclassified HPV genotypes, 2.4% of cases with uncommon HPV genotypes (68, 26, 34, 53, 66, 69, 70, 73, 40, 42, 43, 44, 54, 55, 61, 62, 6, and 11) showed high grade squamous intraepithelial lesions and ICs. There were no HPV32- and 57-infected cases.

Conclusions

We found that the uncommon and rare HPV genotypes may provide incremental etiologic contributions in cervical carcinogenesis, especially HPV68, 70, and 53. Further studies on these uncommon and rare HPV genotypes will be of importance in establishing the significance of genotypes in different regions, especially in planning a strategy for further vaccine development as well as follow-up on the effectiveness of the currently used vaccines.

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P2X₇ Receptor Expression in Coexistence of Papillary Thyroid Carcinoma with Hashimoto's Thyroiditis: Ji Hyun Kwon, Eun Sook Nam, Hyung Sik Shin, Seong Jin Cho, Hye Rim Park, Mi Jung Kwon; Korean J Pathol. 2014;48(1):30-35. Published online February 25, 2014; DOI: https://doi.org/10.4132/KoreanJPathol.2014.48.1.30

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Abstract PDF

Background

This study was aimed at investigating the relation of P2X₇ receptor (P2X₇R) expression with the clinicopathological features of papillary thyroid carcinoma (PTC) coexisting with Hashimoto's thyroiditis (HT).

Methods

We examined 170 patients (84, PTC with HT; 86, PTC without HT). P2X₇R expression was examined by immunohistochemical methods. The staining intensity and patterns were evaluated and scored using a semi-quantitative method.

Results

The PTC with HT group was more likely to contain women and had less extrathyroid extension, lymph node (LN) metastasis, lymphovascular invasion, and recurrence than the PTC without HT group. Patients positive for P2X₇R had significantly higher frequencies of lymphovascular invasion, extrathyroid extension, LN metastasis, and absence of HT. As shown by multivariate analysis, the expression of P2X₇R was significantly higher if HT was absent and extrathyroid extension was present. In the PTC with HT group, the expression of P2X₇R was significantly higher in patients with tumor multifocality, lymphovascular invasion, and extrathyroid extension. In the PTC without HT group, the expression of P2X₇R was significantly higher in women and those having tumor multifocality.

Conclusions

Coexistence of PTC with HT is associated with good prognostic factors, and P2X₇R expression in PTC was correlated with poor prognostic factors and the absence of HT.

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Case Study

Development of Six Tumors in a Sebaceus Nevus of Jadassohn: Report of a Case: Serap Gozel, Melahat Donmez, Noyan Can Akdur, Hulya Yikilkan; Korean J Pathol. 2013;47(6):569-574. Published online December 24, 2013; DOI: https://doi.org/10.4132/KoreanJPathol.2013.47.6.569

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Abstract PDF

Nevus sebaceus of Jadassohn is a congenital cutaneous hamartoma comprised of multiple skin structures. It has the potential to develop into variety of neoplasms of various epidermal adnexal origins. While multiple tumors may occasionally arise, it is unusual for more than four tumors to arise simultaneously within a single sebaceus nevus. Here in, we report a case of a 70-year-old woman with six neoplastic proliferations including a syringocystadenoma papilliferum, pigmented trichoblastoma, tubular apocrine adenoma, sebaceoma, tumors of follicular infundibulum and superficial epithelioma with sebaceus differentiation arising in a long standing nevus sebaceus on the scalp. Our case is extraordinary because a single nevus sebaceus contained six neoplastic proliferations with differentiation toward the folliculosebaceous-apocrine unit.

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Original Article

Cytological Findings of the Micropapillary Variant of Urothelial Carcinoma: A Comparison with Typical High-Grade Urothelial Carcinoma: Kyu-Ho Kim, Chang-Hwan Choi, Jee-Young Han, Lucia Kim, Suk-Jin Choi, In-Suh Park, Joon-Mee Kim, Young-Chae Chu; Korean J Pathol. 2013;47(4):365-371. Published online August 26, 2013; DOI: https://doi.org/10.4132/KoreanJPathol.2013.47.4.365

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Abstract PDF

Background

Micropapillary variant of urothelial carcinoma (MPUC) showed distinct pathologic features and aggressive behavior. The cytologic findings of MPUC are still indistinct. In this study, we evaluated the cytological findings of MPUC compared with those of high-grade urothelial carcinoma (HGUC).

Methods

The voided urine cytology of 8 cases of MPUC and 8 cases of HGUC was reviewed. Following cytological parameters were evaluated: cellularity, background, number of small, tight papillary clusters, small acinar structure, scattered single cells, cytoplasmic features, nuclear-to-cytoplasmic ratio, nuclear pleomorphism, nuclear membrane irregularity, hyperchromasia, chromatin pattern and nucleoli.

Results

Compared to that of HGUC, cytology of MPUC showed large numbers of small, tight papillary clusters, small acinar structure, few numbers of single cells, and hyperchromatic nuclei. Other parameters were similar between the two groups; both groups showed similar cellularity, dense or vacuolated cytoplasm, moderate to severe nuclear pleomorphism, irregular nuclear membrane, coarse granular chromatin, and small and prominent nucleoli.

Conclusions

The urine cytology of MPUCs showed smaller and tighter papillary cell clusters, more small acinar structures, fewer numbers of scattered single cells, and more hyperchromatic nuclei than that of HGUC. These features can help to distinguish MPUC and HGUC and offer an early cytological diagnosis of MPUC.

Citations

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Cytologic features of micropapillary variant urothelial carcinoma in urinary tract cytology: Case series and review of literature
Nancy Y. Greenland, Yue Peng, Poonam Vohra, Z. Laura Tabatabai
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Cyto-histo correlations of plasmacytoid and micropapillary variants of high-grade urothelial carcinoma: do they fit well in The Paris System for reporting urinary cytology?
Liye Suo, Ivonne Vega, Michael Thrall
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A case report of urothelial carcinoma with combined micropapillary and plasmacytoid morphology in the urinary bladder
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Case Study

A Case of Multifocal Papillary Thyroid Carcinoma Consisting of One Encapsulated Follicular Variant with BRAF K601E Mutation and Three Conventional Types with BRAF V600E Mutation: Wook Youn Kim, Young Sin Ko, Tae Sook Hwang, Hye Seung Han, So Dug Lim, Wan Seop Kim, Seo Young Oh; Korean J Pathol. 2013;47(3):293-298. Published online June 25, 2013; DOI: https://doi.org/10.4132/KoreanJPathol.2013.47.3.293

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51 Download
7 Crossref

Abstract PDF

Multifocal papillary thyroid carcinoma (mPTC) comprises about 20-30% of PTC. In mPTC, individual tumor foci can be identical or frequently composed of different histological types including follicular, solid, tall-cell or conventional patterns. We report a case of mPTC consisting of one encapsulated follicular variant of papillary thyroid carcinoma (FVPTC) and three conventional PTCs in a 44-year-old woman. This case genetically demonstrates unique features including the simultaneous presence of the BRAF V600E (T1799A) mutation and the BRAF K601E (A1801G) mutation in conventional PTC and FVPTC, respectively.

Citations

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