Journal of Pathology and Translational Medicine

Original Article

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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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.

Citations

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Invasive papillary carcinoma of the breast
Shijing Wang, Qingfu Zhang, Xiaoyun Mao
Frontiers in Oncology.2024;[Epub] CrossRef
Recommendations for Performance Evaluation of Machine Learning in Pathology: A Concept Paper From the College of American Pathologists
Matthew G. Hanna, Niels H. Olson, Mark Zarella, Rajesh C. Dash, Markus D. Herrmann, Larissa V. Furtado, Michelle N. Stram, Patricia M. Raciti, Lewis Hassell, Alex Mays, Liron Pantanowitz, Joseph S. Sirintrapun, Savitri Krishnamurthy, Anil Parwani, Giovann
Archives of Pathology & Laboratory Medicine.2024; 148(10): e335. CrossRef
Encapsulated papillary carcinoma of the breast: A single institution experience
Liang Xu, Qixin Mao, Qiuming Liu, Yufeng Gao, Lihua Luo, Chungen Guo, Wei Qu, Ningning Yan, Yali Cao
Oncology Letters.2023;[Epub] CrossRef
High-risk and selected benign breast lesions diagnosed on core needle biopsy: Evidence for and against immediate surgical excision
Aparna Harbhajanka, Hannah L. Gilmore, Benjamin C. Calhoun
Modern Pathology.2022; 35(11): 1500. CrossRef

Review

Standardized pathology report for breast cancer: Soo Youn Cho, So Yeon Park, Young Kyung Bae, Jee Yeon Kim, Eun Kyung Kim, Woo Gyeong Kim, Youngmee Kwon, Ahwon Lee, Hee Jin Lee, Ji Shin Lee, Jee Young Park, Gyungyub Gong, Hye Kyoung Yoon; J Pathol Transl Med. 2021;55(1):1-15. Published online January 11, 2021; DOI: https://doi.org/10.4132/jptm.2020.11.20

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Abstract PDF Supplementary Material

Given the recent advances in management and understanding of breast cancer, a standardized pathology report reflecting these changes is critical. To meet this need, the Breast Pathology Study Group of the Korean Society of Pathologists has developed a standardized pathology reporting format for breast cancer, consisting of ‘standard data elements,’ ‘conditional data elements,’ and a biomarker report form. The ‘standard data elements’ consist of the basic pathologic features used for prognostication, while other factors related to prognosis or diagnosis are described in the ‘conditional data elements.’ In addition to standard data elements, all recommended issues are also presented. We expect that this standardized pathology report for breast cancer will improve diagnostic concordance and communication between pathologists and clinicians, as well as between pathologists inter-institutionally.

Citations

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Residual pure intralymphatic carcinoma component only (lymphovascular tumor emboli without invasive carcinoma) after neoadjuvant chemotherapy is associated with poor outcome: Not pathologic complete response
Hyunwoo Lee, Yunjeong Jang, Yoon Ah Cho, Eun Yoon Cho
Human Pathology.2024; 145: 1. CrossRef
Sentinel lymph node biopsy in patients with ductal carcinomain situ: systematic review and meta-analysis
Matthew G. Davey, Colm O’Flaherty, Eoin F. Cleere, Aoife Nohilly, James Phelan, Evan Ronane, Aoife J. Lowery, Michael J. Kerin
BJS Open.2022;[Epub] CrossRef

Brief Case Report

Collagenous Spherulosis Associated with Lobular Carcinoma In Situ of the Breast: Two Case Reports: Ga-Eon Kim, Nah Ihm Kim, Ji Shin Lee, Min Ho Park; J Pathol Transl Med. 2018;52(6):420-424. Published online March 29, 2018; DOI: https://doi.org/10.4132/jptm.2018.03.29

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Immunohistochemical marker profiles for the differentiation of collagenous spherulosis from adenoid cystic carcinoma of the breast
Henriette L. Warm, Leonie D. Kandt, Nora Schaumann, Christopher Werlein, Malte Gronewold, Henriette Christgen, Malin Hellmann, Marcel Lafos, Bernd Auber, Peter Hillemanns, Hans Kreipe, Matthias Christgen
Human Pathology.2024; 148: 7. CrossRef
Collagenous Spherulosis in Benign Lichenoid Keratosis—Breaking the Monopoly of Breast Lesions
Anurag Sharma, Jeremy Brozyna, Daniel Knabel, Wilma F. Bergfeld
The American Journal of Dermatopathology.2020; 42(8): 620. CrossRef

Case Study

Metaplastic Carcinoma with Chondroid Differentiation Arising in Microglandular Adenosis: Ga-Eon Kim, Nah Ihm Kim, Ji Shin Lee, Min Ho Park; J Pathol Transl Med. 2017;51(4):418-421. Published online April 4, 2017; DOI: https://doi.org/10.4132/jptm.2016.10.06

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Abstract PDF

Microglandular adenosis (MGA) of the breast is a rare, benign proliferative lesion but with a significant rate of associated carcinoma. Herein, we report an unusual case of metaplastic carcinoma with chondroid differentiation associated with typical MGA. Histologically, MGA showed a direct transition to metaplastic carcinoma without an intervening atypical MGA or ductal carcinoma in situ component. The immunohistochemical profile of the metaplastic carcinoma was mostly similar to that of MGA. In both areas, all the epithelial cells were positive for S-100 protein, but negative for estrogen receptor, progesterone receptor, HER2/neu, and epidermal growth factor receptor. An increase in the Ki-67 and p53 labelling index was observed from MGA to invasive carcinoma. To the best of our knowledge, this is the first case of metaplastic carcinoma with chondroid differentiation arising in MGA in Korea. This case supports the hypothesis that a subset of MGA may be a non-obligate morphologic precursor of breast carcinoma, especially the triple-negative subtype.

Citations

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Elucidating the nature of acinic cell carcinoma of the breast with high-grade morphology: evidence from case report
Yunjie Ge, Xianping Wei, Jing-Nan Liu, Ping-Li Sun, Hongwen Gao
Diagnostic Pathology.2024;[Epub] CrossRef
New insights into acinic cell carcinoma of the breast: clinicopathology, origin of histology, molecular features, prognosis, and treatment
Yunjie Ge, Xianping Wei, Jing-Nan Liu, Ping-Li Sun, Hongwen Gao
Frontiers in Oncology.2024;[Epub] CrossRef
Metaplastic Matrix-Producing Carcinoma and Apocrine Lobular Carcinoma In Situ Associated with Microglandular Adenosis: A Unique Case Report
Nektarios Koufopoulos, Dionysios Dimas, Foteini Antoniadou, Kyparissia Sitara, Dimitrios Balalis, Ioannis Boutas, Alina Roxana Gouloumis, Adamantia Kontogeorgi, Lubna Khaldi
Diagnostics.2022; 12(6): 1458. CrossRef
Salivary gland-type mammary carcinoma arising in microglandular adenosis: A case report and clinicopathological review of the literature
Victoria Rico, Yukiko Shibahara, Marjorie Monteiro, Elzbieta Slodkowska, Samantha Tam, Pearl Zaki, Carlo De Angelis, Edward Chow, Katarzyna Joanna Jerzak
Cancer Treatment and Research Communications.2020; 24: 100178. CrossRef
Microglandular adenosis is an advanced precursor breast lesion with evidence of molecular progression to matrix-producing metaplastic carcinoma
Christopher J. Schwartz, Igor Dolgalev, Esther Yoon, Iman Osman, Adriana Heguy, Eleazar C. Vega-Saenz de Miera, Diana Nimeh, George Jour, Farbod Darvishian
Human Pathology.2019; 85: 65. CrossRef

Brief Case Report

Inflammatory Myofibroblastic Tumor of the Thyroid Gland: A Brief Case Report: Hye Jeong Kim, Jong In Na, Ji Shin Lee, Dong Hyeok Cho, Jin Seong Cho; Korean J Pathol. 2014;48(4):319-322. Published online August 26, 2014; DOI: https://doi.org/10.4132/KoreanJPathol.2014.48.4.319

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Citations

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Inflammatory myofibroblastic tumor of the thyroid gland
Yiyang Zhang, Jia Liu
Frontiers in Endocrinology.2023;[Epub] CrossRef
ALK-1-positive inflammatory myofibroblastic tumor of the thyroid complicated by Hashimoto’s thyroiditis: report of a rare case and a literature review
Cheng-fang Li, Xing-long Wu, Jin-jing Wang, Kai Wang, Su-yuan Zhang, Jia-jia Huang, Han-zhong Hu, Hong Zheng
Diagnostic Pathology.2020;[Epub] CrossRef
Plasma Cell Granuloma of the Thyroid: Review of an Uncommon Entity
Pallavi A. Patil, Ronald A. DeLellis
Archives of Pathology & Laboratory Medicine.2018; 142(8): 998. CrossRef

Case Reports

Melanotic Oncocytic Metaplasia of the Nasopharynx: A Report of Three Cases and Review of the Literature: Joo Young Na, Yeong Hui Kim, Yoo Duk Choi, Ji Shin Lee; Korean J Pathol. 2012;46(2):201-204. Published online April 25, 2012; DOI: https://doi.org/10.4132/KoreanJPathol.2012.46.2.201

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Abstract PDF

Melanotic oncocytic metaplasia of the nasopharynx is a rare condition which is characterized by the presence of usually a small, brown to black colored pigmented lesion around the Eustachian tube opening. Although it is a benign lesion, it may be clinically misdiagnosed as malignant melanoma. Microscopically, melanotic oncocytic metaplasia is a combination of oncocytic metaplasia of the epithelium of the gland and melanin pigmentation in its cytoplasm. In our present study, we report three cases of melanotic oncocytic metaplasia of the nasopharynx. All the three cases occurred in men and were presented as multiple black pigmented lesions around the torus tubarius. Microscopically, mucous glands with diffuse oncocytic metaplasia and numerous black pigments were observed. No cellular atypia was observed. Immunohistochemically, the scattering of S-100 protein-positive, and human melanoma black 45-negative dendritic melanocytes was evident. This is the first report of cases of melanotic oncocytic metaplasia of the nasopharynx in Korea.

Citations

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Lesions that mimic malignant tumors in nasopharyngeal biopsies: case series of 10 years
Mine Ozsen, Ozlem Saraydaroglu, Selin Yirmibes, H. Hakan Coskun
Tumori Journal.2022; 108(2): 119. CrossRef
Melanotic Oncocytic Metaplasia of the Nasopharynx Seen as a Rare Form of Cystic Mass: A Case Report and Review of the Literature
Keun-Ik Yi, Yong-Wan Kim
Journal of Clinical Otolaryngology Head and Neck Surgery.2022; 33(1): 23. CrossRef
Melanotic Oncocytic Metaplasia of the Nasopharynx: A Case Report With Review of Literature
Hsing-Yu Chen, Mpendulo Felix Gule, I-Wei Chang
Ear, Nose & Throat Journal.2021; 100(5_suppl): 771S. CrossRef
Malignant Mucosal Melanoma of the Eustachian Tube With Extension Into the Ipsilateral External Ear Canal: A Case Report and Review of the Literature
Lifeng Li, Nyall R. London, Xiaohong Chen
Ear, Nose & Throat Journal.2021; 100(5_suppl): 730S. CrossRef
Melanotic oncocytic metaplasia of the nasopharynx: A case report discussing the pathogenesis of a lesion
Shina Sakaguchi, Hiromasa Takakura, Shin-ichi Hayashi, Akira Noguchi, Hirohiko Tachino, Hideo Shojaku, Johji Imura
Otolaryngology Case Reports.2021; 20: 100276. CrossRef
Oncocytic Cysts of the Nasopharynx: A Case Report
Joshua C. Hwang, Raj D. Dedhia, Joan E. Bernard, Toby O. Steele
Allergy & Rhinology.2020; 11: 215265672095659. CrossRef
Melanotic Oncocytic Metaplasia of the Nasopharynx in the Patient with Suspicious Hemoptysis: Case Report
Taek Yoon Cheong, Han Seong Kim, Ick Soo Choi
Journal of Rhinology.2020; 27(2): 140. CrossRef
Clinicopathological features of melanotic and non-melanotic oncocytic lesions of the nasopharynx
Joshua J.X. Li, Joanna K.M. Ng, Amy B.W. Chan
Pathology.2019; 51(6): 600. CrossRef
Melanotic oncocytic metaplasia of the nasopharynx
Keiichiro Uehara, Yu Usami, Yukihiro Imai, Michio Shimizu
Pathology International.2015; 65(3): 144. CrossRef

Exuberant Smooth Muscle Cells in Fibroadenoma of the Breast: A Case Report.: Ga Eon Kim, Young Kim, Eun Hui Jeong, Jo Heon Kim, Min Ho Park, Ji Shin Lee; Korean J Pathol. 2010;44(4):431-434.; DOI: https://doi.org/10.4132/KoreanJPathol.2010.44.4.431

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Abstract PDF

Smooth muscle cell metaplasia is an extremely rare form of stromal differentiation in fibroadenomas. We describe a case of fibroadenoma with exuberant smooth muscle cells in a 72-year-old woman. The mass was located in the upper central portion of the left breast. It was well circumscribed and its greatest dimension was 3 cm. Histologically, the glandular elements resembled the appearance of fibroadenoma, but the stromal elements were composed of spindle cell bundles with abundant eosinophilic cytoplasm and elongated cigar-shaped nuclei. Neither mitotic activity nor cellular atypia was seen. The stromal cells were immunohistochemically positive for smooth muscle actin, calponin, desmin, and estrogen receptor-beta, but negative for CD34, S-100 protein, p63, CD10, estrogen receptor-alpha, progesterone receptor and cytokeratin. These results proved that the stromal cells showed features of smooth muscle cells.

Citations

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Unusual Myoid Differentiation in a Canine Benign Mixed Mammary Tumour
Barbara Brunetti, Luisa Vera Muscatello, Louis J. DeTolla, Giancarlo Avallone, Isabel Pires
Case Reports in Veterinary Medicine.2021; 2021: 1. CrossRef

Original Articles

Utility of Promoter Hypermethylation for Differentiating Malignant and Benign Effusions in Liquid-Based Cytology Specimens.: Ga Eon Kim, Jo Heon Kim, Yeong Hui Kim, Chan Choi, Ji Shin Lee; Korean J Pathol. 2010;44(3):315-321.; DOI: https://doi.org/10.4132/KoreanJPathol.2010.44.3.315

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Abstract PDF

BACKGROUND
Making the cytologic differentiation between benign and malignant effusions can be difficult. Because promoter hypermethylation of tumor suppressor genes is a frequent epigenetic event in many human cancers, it could serve as a marker for the diagnosis of cancer. The aim of this study was to investigate the feasibility of detecting promoter hypermethylation as a diagnostic tool with using liquid-based cytology samples for differentiating between malignant and benign effusions.
METHODS
A multiplex, nested, methylation-specific polymerase chain reaction analysis was used to examine promoter methylation of 4 genes (retinoic acid receptor-beta, [RAR-beta], adenomatous polyposis coli [APC], Twist and high in normal-1 [HIN-1]) in malignant (n = 85) and benign (n = 31) liquid-based cytology samples.
RESULTS
The frequencies of hypermethylation of RAR-beta, APC, Twist and HIN-1 were significantly higher in the malignant effusions than in the benign effusions (p < 0.001 for each). On the receiver-operating characteristic analysis, the area under the curve (AUC) for APC was the greatest. The AUC for the best two-gene combination (APC/HIN-1) was not statistically different from the AUC for the best individual tumor suppressor gene (APC).
CONCLUSIONS
This study suggests that promoter methylation analysis on residual liquid-based effusion samples may be a feasible approach to detect malignant effusions, and that APC is the best marker for differentiating between malignant and benign effusions.

Citations

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A comparative analysis of conventional cytopreparatory and liquid based cytological techniques (Sure Path) in evaluation of serous effusion fluids
Hrishikesh Dadhich, Pampa Ch Toi, Neelaiah Siddaraju, Kalidas Sevvanthi
Diagnostic Cytopathology.2016; 44(11): 874. CrossRef

DNA Methylation Profiles of MGMT, DAPK1, hMLH1, CDH1, SHP1, and HIC1 in B-Cell Lymphomas.: Sung Sun Kim, Young Hyo Choi, Chang Woo Han, Yoo Duk Choi, Youngkyu Park, Je Jung Lee, Hyeoung Joon Kim, Il Kwon Lee, Ji Shin Lee, Sang Woo Juhng, Chan Choi; Korean J Pathol. 2009;43(5):420-427.; DOI: https://doi.org/10.4132/KoreanJPathol.2009.43.5.420

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Abstract PDF

BACKGROUND
This study was designed to examine the prevalence of aberrant promoter methylation in a selected panel of genes potentially involved in lymphoid tumors.
METHODS
The promoter hypermethylation status of MGMT, DAPK1, hMLH1, CDH1, SHP1, and HIC1 was measured by methylation-specific PCR for 82 cases of B-cell lymphoma. Immunohistochemical staining using MGMT and SHP1 antibodies was conducted on 43 out of 82 cases.
RESULTS
The number of MGMT aberrant methylations was lower in diffuse large B-cell lymphoma (DLBCL) than in other malignant lymphomas. The methylation of DAPK1 was frequently detected in follicular lymphoma (FL), marginal zone B-cell lymphoma (MZL) and DLBCL. With one exception, methylation of hMLH1 was not observed in B-cell lymphomas. The methylation frequency of CDH1, and HIC1 was similar in B-cell lymphomas. However, the methylation of SHP1 gene was more frequently observed in cases of FL, DLBCL, and MZL than in chronic lymphocytic lymphoma. MGMT and SHP1 promoter methylation were inversely correlated with the protein expression observed upon immunohistochemical staining.
CONCLUSIONS
Aberrant promoter methylation of multiple genes occurs with variable frequency throughout the B-cell lymphomas, and methylation of hMLH1 is rarely observed in B-cell lymphomas.

Citations

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Plasma DNA methylation of p16 and shp1 in patients with B cell non-Hodgkin lymphoma
Kai Ding, Xiaoshuang Chen, Yihao Wang, Hui Liu, Wenjing Song, Lijuan Li, Guojin Wang, Jia Song, Zonghong Shao, Rong Fu
International Journal of Clinical Oncology.2017; 22(3): 585. CrossRef
Hypermethylation of p15 Gene in Diffuse – Large B‐Cell Lymphoma: Association with Less Aggressiveness of the Disease
Milena Krajnović, Maja Peruničić Jovanović, Biljana Mihaljević, Boško Anđelić, Olivera Tarabar, Slavica Knežević‐Ušaj, Koviljka Krtolica
Clinical and Translational Science.2014; 7(5): 384. CrossRef

Case Report

Cytologic Diagnosis of Malignant Pleural Effusion in Multiple Myeloma: Two Case Reports.: Yoo Duk Choi, Sung Sun Kim, Chang Woo Han, Ji Shin Lee, Jong Hee Nam, Sang Woo Juhng, Chan Choi; Korean J Pathol. 2009;43(4):382-385.; DOI: https://doi.org/10.4132/KoreanJPathol.2009.43.4.382

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Abstract PDF

Malignant pleural effusion in multiple myeloma (MM) is extremely rare and is associated with poor prognosis. We experienced two cases of MM IgA type with malignant pleural effusion. The diagnoses were based on characteristic cytology and CD138 immunocytochemistry. The patients received several cycles of combination chemotherapy, since symptoms were more aggressive with an uncontrolled pleural effusion. We review the clinical features of these cases and literature concerning myelomatous pleural effusion.

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Características de los pacientes con derrame pleural mielomatoso. Revisión sistemática
V. Riveiro, L. Ferreiro, M.E. Toubes, A. Lama, J.M. Álvarez-Dobaño, L. Valdés
Revista Clínica Española.2018; 218(2): 89. CrossRef
Characteristics of patients with myelomatous pleural effusion. A systematic review
V. Riveiro, L. Ferreiro, M.E. Toubes, A. Lama, J.M. Álvarez-Dobaño, L. Valdés
Revista Clínica Española (English Edition).2018; 218(2): 89. CrossRef
A 76-Year-Old Man With Anemia, Bone Pain, and Progressive Dyspnea
Thitiporn Suwatanapongched, Prapaporn Pornsuriyasak, Wasana Kanoksil, Thotsaporn Morasert, Warapat Virayavanich
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Original Articles

Analysis of HPV-other Samples by Performing HPV DNA Sequencing.: Yoo Duk Choi, Chang Woo Han, Woon Jae Chung, Woon Won Jung, Ji Shin Lee, Jong Hee Nam, Min Cheol Lee, Sang Woo Juhng, Ho Sun Choi, Chang Soo Park; Korean J Pathol. 2009;43(3):250-253.; DOI: https://doi.org/10.4132/KoreanJPathol.2009.43.3.250

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Abstract PDF

BACKGROUND
HPV-other samples are designated as being positive on HPV-PCR, but negative when using specific HPV hybridization probes. We wanted to determine the types on the HPV-other samples by performing sequencing, and to know the pathologic status of the uterine cervix according to the HPV type detected on sequencing.
METHODS
For HPV genotying, we used the commercially available HPV DNA Chip test, which contains 15 types of high-risk HPV and 9 types of low-risk HPV. The HPV DNA sequencing was performed for the HPV-other samples of 209 patients who subsequently underwent cervical biopsy.
RESULTS
For 204 of the 209 samples, the HPV types detected by sequencing were absent types at used HPV DNA chip. For the remaining 5 samples, sequencing was impossible due to mixed peaks. HPV-81 (19.6%), HPV-61 (18.6%), HPV-62 (16.7%) and HPV-84 (13.9%) were frequently detected. For the HPV-81, -62, -71, and -72 samples, most of the samples displayed normal or LSIL. However, HPV-84 and -61 were more associated with HSIL or worse, as compared to the other types.
Conclusion
HPV-81, -61, -62 and -84 were frequently found on sequencing analysis of the HPV-other samples. The pathologic status was diverse, according to the HPV type detected on sequencing.

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Yong-Hong Dong, Yu-Hua Luo, Chen-Jian Liu, Wen-Yu Huang, Lin Feng, Xing-Yuan Zou, Jin-Yan Zhou, Xiao-Ran Li
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Cervical Dysplasia, Infection, and Phylogeny of Human Papillomavirus in HIV-Infected and HIV-Uninfected Women at a Reproductive Health Clinic in Nairobi, Kenya
Agnes Omire, Nancy L. M. Budambula, Leah Kirumbi, Hillary Langat, Danvas Kerosi, Washingtone Ochieng, Raphael Lwembe
BioMed Research International.2020; 2020: 1. CrossRef
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Yewande T. Nejo, David O. Olaleye, Georgina N. Odaibo, Jason Blackard
PLOS ONE.2019; 14(11): e0224748. CrossRef
Sequencing analysis of HPV-other type on an HPV DNA chip
Min-Jeong Kim, Jin Ju Kim, Sunmie Kim
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Molecular epidemiology and genotype distribution of Human Papillomavirus (HPV) among Arab women in the state of Qatar
Devendra Bansal, Asha A Elmi, Sini Skariah, Pascale Haddad, Laith J Abu-Raddad, Aysha H Al Hamadi, Nady Mohamed-Nady, Nahla M Affifi, Randa Ghedira, Elham Hassen, Asma AJ Al-Thani, Afaf AHM Al-Ansari, Ali A Sultan
Journal of Translational Medicine.2014;[Epub] CrossRef
HPV Prevalence and Detection of Rare HPV Genotypes in Hong Kong Women from Southern China with Cytological Abnormalities
Ngai Na Chloe Co, Lai-On Chu, Joseph K. F. Chow, Joseph W. O. Tam, Enders K. O. Ng
ISRN Virology.2013; 2013: 1. CrossRef
Type-specific prevalence of high-risk human papillomavirus by cervical cytology and age: Data from the health check-ups of 7,014 Korean women
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Obstetrics & Gynecology Science.2013; 56(2): 110. CrossRef

The Study of p53 Expression and DNA Ploidy in Colorectal Carcinoma.: Ji Shin Lee, Kwang Soo Cheon, Chang Soo Park; Korean J Pathol. 1996;30(9):775-783.

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Abstract PDF: Mutation of the p53 gene frequently results in overexpression of the p53 protein and loss of its tumor-suppressing properties. The overexpression of the p53 gene could be an indicator of rapid proliferation, poor differentiation, advanced stages, or poor prognosis. The prognostic value of the overexpression of the p53 gene in colorectal carcinoma is equivocal. The presence of DNA aneuploidy has been described as a powerful adverse prognostic indicator in relation to survival. To investigate the prognostic significance of p53 expression, and the relationship with DNA ploidy, 92 cases of colorectal carcinomas were analyzed. The overexpression of p53 gene product was present in 50(54.4%) of 92 cases. p53 expression only correlated with recurrence or metastasis during the follow-up periods (p=0.045). DNA aneuploidy was observed in 32(39.1%) of 82 cases. DNA ploidy was strongly associated with lymph node invasion(p=0.005), Dukes' stage(p=0.003), TNM classification (p=0.003), and recurrence or metastasis during the follow-up periods (p=0.045). The frequency of DNA aneuploidy was higher in the p53-positive colorectal carcinomas(58.3%) than in the p53-negative colorectal carcinomas (21.6%) (p=0.003). p53-positive colorectal carcinomas had a higher rate of cell proliferation than p53-negative cases(p<0.001). These results suggest that checking the p53 expression and DNA ploidy could be useful prognostic indicators of colorectal carcinoma.

Case Report

Infantile Hemangioendothelioma of the Liver: Brief case report.: Hyang Jeong Jo, Ki Jung Yun, Jae Kyu Lee, Ji Shin Lee, Hyung Bae Moon; Korean J Pathol. 1997;31(6):586-588.

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Abstract PDF: Infantile hemangioendothelioma of the liver is a common vascular tumor in infancy. The tumor is usually multinodular or diffuse and classified into two types. We present a case of infantile hemangioendothelioma of the liver, which predominantly consists of type 2. A 4-month-old female was admitted for an evaulation of an abdominal distension. A CT scan of the liver showed a multinodular mass. The right lobectomy was done. Grossly, the mass consisted of round nodules ranging from 2cm to 5cm in diameter. Microscopically, the tumor revealed proliferation of small vascular channels lined by endothelial cells. Bizarre cells and mitotic cells were frequently noted. Vesicular nuclei and multilayering of the endothelial cells were also noted.

Original Articles

A Study on the Expression of p53 Oncogene Products, PCNA Index and DNA Ploidy in Renal Cell Carcinoma.: Jong Jae Jung, Ji Shin Lee, Chan Choi; Korean J Pathol. 1997;31(7):672-682.

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Abstract PDF: Mutant p53 is associated with the advanced stages of some human tumor but there is a wide variation in the reported incidence of p53 mutation in renal cell carcinoma and its prognostic significances. We designed this study to assess the expression of p53 in renal cell carcinomas and to compare with the established prognostic factors. Immunoreactivity for p53 protein and proliferating cell nuclear antigen (PCNA) were assessed in 44 cases of primary renal cell carcinoma, and flow cytometric analysis of DNA ploidy was perfon-ned in 37 of those cases. p53 protein was over-expressed in 16/44 (36.4%) renal cell carcinomas and 5 rumors had more than 10 immunoreactive tumor cells. The expression of p53 protein was positively related to nuclear grade (p=0.007) and PCNA index (p=0.002), but was independent of stage and DNA ploidy. In univariate survival analysis, stage (p<0.001), nuclear grade (p=0.017), DNA ploidy (p=0.045) and PCNA index (p<0.001) were significantly associated with patient survival. However, considering the stage, all of the last three factors had no prognostic influence. Cases showing strong positivity of p53 expression had worse prognosis than those with no or weak p53 expression, especially in early lesions (stage I,II) (p<0.001).

Tumor Angiogenesis in Renal Cell Carcinoma.: Ji Shin Lee, Jong Jae Jung, Chang Soo Park; Korean J Pathol. 1999;33(11):1055-1060.

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Abstract PDF: Angiogenesis is essential for the growth of solid tumors. Microvessel counts, which represent a measure of tumor angiogenesis, have been correlated with the overall survival of patients with a variety of malignancies. However, the significance of angiogenesis in renal cell carcinoma remains controversial. To determine whether angiogenesis correlates with prognosis of patients with renal cell carcinoma, we counted the microvessels within the primary tumors and compared their numbers with patients' prognosis. Tumor specimens from 42 patients were investigated. Microvessels were stained with anti-CD34 and anti-factor VIII-related antigen monoclonal antibodies. Significant correlation between microvessel counts for two antibodies was observed (r=0.875, p<0.01), although microvessel counts for CD34 were approximately two times higher. Microvessel counts were higher in clear cell than in non-clear cell carcinoma (p<0.05). These results suggest that immunostaining with anti-CD34 antibody may provide a more sensitive and accurate measure of tumor angiogenesis. There was no correlation between microvessel counts and nuclear grade, or TNM stage. In univariate analyses, nuclear grade and TNM stage were significantly associated with patient survival (p<0.01). But further studies on tumor angiogenesis of renal cell carcinoma are needed before it can be adopted as a prognostic marker.

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