Journal of Pathology and Translational Medicine

Original Articles

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

Cytomorphological Features of Hyperchromatic Crowded Groups in Liquid-Based Cervicovaginal Cytology: A Single Institutional Experience: Youngeun Lee, Cheol Lee, In Ae Park, Hyoung Jin An, Haeryoung Kim; J Pathol Transl Med. 2019;53(6):393-398. Published online September 16, 2019; DOI: https://doi.org/10.4132/jptm.2019.08.14

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Abstract PDF

Background
Hyperchromatic crowed groups (HCGs) are defined as three-dimensional aggregates of crowded cells with hyperchromatic nuclei, and are frequently encountered in cervicovaginal liquid-based cytology (LBC). Here, we aimed to examine the prevalence of HCGs in cervicovaginal LBC and the cytomorphological characteristics of various epithelial cell clusters presenting as HCGs.
Methods
We first examined the prevalence of HCGs in a “routine cohort” of LBC cytology (n=331), consisting of all cervicovaginal LBCs accessioned over 3 days from outpatient clinics (n=179) and the screening population (n=152). Then we examined a second “high-grade epithelial cell abnormalities (H-ECA) cohort” (n=69) of LBCs diagnosed as high-grade squamous intraepithelial lesion (HSIL), squamous cell carcinoma (SCC), or adenocarcinoma during 1 year.
Results
HCGs was observed in 34.4% of the routine cohort and were significantly more frequent in the epithelial cell abnormality category compared to the non-neoplastic category (p=.003). The majority of HCGs represented atrophy (70%). Of the 69 histologically confirmed H-ECA cases, all contained HCGs. The majority of cases were HSIL (62%), followed by SCC (16%). Individually scattered neoplastic cells outside the HCGs were significantly more frequent in SCCs compared to glandular neoplasia (p=.002). Despite the obscuring thick nature of the HCGs, examining the edges and the different focal planes of the HCGs and the background were helpful in defining the nature of the HCGs.
Conclusions
HCGs were frequently observed in cervicovaginal LBC and were mostly non-neoplastic; however, neoplastic HCGs were mostly high-grade lesions. Being aware of the cytomorphological features of different HCGs is important in order to avoid potential false-negative cytology interpretation.

Citations

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Can Mitotic Figures in Hyperchromatic Crowded Groups be Cytodiagnostic Criteria for High-Grade Squamous Intra-epithelial Lesions?
Hisae Suzuki, Yumeno Kondo, Chihiro Oda, Takeshi Nishikawa, Mao Takeuchi, Shigenobu Tatsumi, Sho Hosokawa, Satoshi Irino, Tomoko Uchiyama, Tomomi Fujii, Yoshiaki Norimatsu
Journal of Cytology.2024; 41(2): 116. CrossRef
Atypical glandular cells (AGC): Cytology of glandular lesions of the uterine cervix
Mir Yousufuddin Ali Khan, Sudeshna Bandyopadhyay, Ahmed Alrajjal, Moumita Saha Roy Choudhury, Rouba Ali-Fehmi, Vinod B. Shidham
Cytojournal.2022; 19: 31. CrossRef
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
Journal of Pathology and Translational Medicine.2022; 56(5): 260. CrossRef
The association of atypical squamous cells, cannot exclude a high grade squamous intraepithelial lesion, hyperchromatic crowded groups and high grade squamous intraepithelial lesions involving endocervical glands
Suzanne M. Selvaggi
Diagnostic Cytopathology.2021; 49(9): 1008. CrossRef

High Cytoplasmic CXCR4 Expression Predicts Prolonged Survival in Triple-Negative Breast Cancer Patients Treated with Adjuvant Chemotherapy: Bobae Shim, Min‐Sun Jin, Ji Hye Moon, In Ae Park, Han Suk Ryu; J Pathol Transl Med. 2018;52(6):369-377. Published online October 1, 2018; DOI: https://doi.org/10.4132/jptm.2018.09.19

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Abstract PDF

Background
Chemokine receptor CXC chemokine receptor type 4 (CXCR4) and its ligand CXC motif chemokine 12 (CXCL12; stromal cell-derived factor-1) are implicated in tumor growth, metastasis, and tumor cell-microenvironment interaction. A number of studies have reported that increased CXCR4 expression is associated with worse prognosis in triple-negative breast cancer (TNBC), but its prognostic significance has not been studied in TNBC patients treated with adjuvant chemotherapy.
Methods
Two hundred eighty-three TNBC patients who received adjuvant chemotherapy were retrospectively analyzed. Tissue microarray was constructed from formalinfixed, paraffin-embedded tumor tissue and immunohistochemistry for CXCR4 and CXCL12 was performed. Expression of each marker was compared with clinicopathologic characteristics and outcome.
Results
High cytoplasmic CXCR4 expression was associated with younger age (p = .008), higher histologic grade (p = .007) and lower pathologic stage (p = .045), while high CXCL12 expression was related to larger tumor size (p = .045), positive lymph node metastasis (p = .005), and higher pathologic stage (p = .017). The patients with high cytoplasmic CXCR4 experienced lower distant recurrence (p = .006) and better recurrence-free survival (RFS) (log-rank p = .020) after adjuvant chemotherapy. Cytoplasmic CXCR4 expression remained an independent factor of distant recurrence (p = .019) and RFS (p = .038) after multivariate analysis.
Conclusions
High cytoplasmic CXCR4 expression was associated with lower distant recurrence and better RFS in TNBC patients treated with adjuvant chemotherapy. This is the first study to correlate high CXCR4 expression to better TNBC prognosis, and the underlying mechanism needs to be elucidated in further studies.

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Konstantinos Ntostoglou, Sofia D. P. Theodorou, Tanja Proctor, Ilias P. Nikas, Sinclair Awounvo, Athanasia Sepsa, Vassilis Georgoulias, Han Suk Ryu, Ioannis S. Pateras, Christos Kittas
Cancer Immunology, Immunotherapy.2024;[Epub] CrossRef
Unravelling the CXCL12/CXCR4 Axis in breast cancer: Insights into metastasis, microenvironment interactions, and therapeutic opportunities
Priyanka Garg, Venkateswara Rao Jallepalli, Sonali Verma
Human Gene.2024; 40: 201272. CrossRef
New Emerging Chemokine Receptors: CCR5 or CXCR5 on Tumor Is Associated with Poor Response to Chemotherapy and Poor Prognosis in Locally Advanced Triple-Negative Breast Cancer
Neslihan Cabioglu, Semen Onder, Hüseyin Karatay, Aysel Bayram, Gizem Oner, Mustafa Tukenmez, Mahmut Muslumanoglu, Abdullah Igci, Ahmet Dinccag, Vahit Ozmen, Adnan Aydiner, Pınar Saip, Ekrem Yavuz
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Shuai Lin, Yi Zheng, Meng Wang, Linghui Zhou, Yuyao Zhu, Yujiao Deng, Ying Wu, Dai Zhang, Na Li, Huafeng Kang, Zhijun Dai
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Liping Qiu, Yuanyuan Xu, Hui Xu, Biyun Yu
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Mushtaq Ahmad Nengroo, Muqtada Ali Khan, Ayushi Verma, Dipak Datta
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Yulian Erwin D
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CXCL12/CXCR4 axis in the microenvironment of solid tumors: A critical mediator of metastasis
Keywan Mortezaee
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Irina Chifu, Britta Heinze, Carmina T. Fuss, Katharina Lang, Matthias Kroiss, Stefan Kircher, Cristina L. Ronchi, Barbara Altieri, Andreas Schirbel, Martin Fassnacht, Stefanie Hahner
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Case Study

Cytologic Diagnosis of Metastatic Alveolar Rhabdomyosarcoma in Cerebrospinal Fluid: A Case Report: Bobae Shim, Jiwon Koh, Ji Hye Moon, In Ae Park, Han Suk Ryu; J Pathol Transl Med. 2018;52(4):262-266. Published online June 14, 2018; DOI: https://doi.org/10.4132/jptm.2018.05.15

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Abstract PDF

Rhabdomyosarcoma is a malignant soft tissue tumor which shows skeletal muscle differentiation. Leptomeningeal metastasis can occur as a late complication, but currently there are no reports that have documented the cytologic features in cerebrospinal fluid (CSF). We report a case of metastatic alveolar rhabdomyosarcoma diagnosed in the CSF of a 28-year-old male who was originally diagnosed with rhabdomyosarcoma on the neck, and that went through systemic therapy. The tumor was positive for anaplastic lymphoma kinase, but progressed despite additional therapy with crizotinib. The CSF specimen revealed small round cells, large atypical cells with abundant cytoplasm and eccentric nuclei, and cells with horseshoe-shaped nuclei. These cytologic findings were in agreement with previous literature and well-correlated with histopathology. This is the first report to document the cytologic feature of rhabdomyosarcoma in CSF. In many cases it is difficult to perform ancillary tests in a CSF specimen and cytopathologists should be aware of the cytomorphologic characteristics to avoid misdiagnosis.

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A Review of Effusion Cytomorphology of Small Round Cell Tumors
Lucy M. Han, Christopher J. VandenBussche, Mads Abildtrup, Ashish Chandra, Poonam Vohra
Acta Cytologica.2022; 66(4): 336. CrossRef
Cytologic diagnosis of metastatic embryonal rhabdomyosarcoma in cerebrospinal fluid: A case report
Muxia Yan, Ying Wu, Jianqing Xia, Xiaohong Zhang, Yiqian Wang
Diagnostic Cytopathology.2021;[Epub] CrossRef
Effusion cytology of epithelioid rhabdomyosarcoma
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Diagnostic Cytopathology.2019; 47(10): 1042. CrossRef

Brief Case Report

WITHDRAWN:Uterine Arteriovenous Malformation Accompanied with a Uterine Stromomyoma: Yul Ri Chung, Dohee Kwon, Sehui Kim, Hee Young Na, Nayoung Han, Hyo Jin Kim, Min A Kim, In Ae Park; Received May 13, 2016 Accepted September 23, 2016 Published online August 4, 2017; DOI: https://doi.org/10.4132/jptm.2016.09.24

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Original Article

Diagnostic Accuracy of Endoscopic Ultrasound-Guided Fine Needle Aspiration Cytology of Pancreatic Lesions: Hae Woon Baek, Min Jee Park, Ye-Young Rhee, Kyoung Bun Lee, Min A Kim, In Ae Park; J Pathol Transl Med. 2015;49(1):52-60. Published online January 15, 2015; DOI: https://doi.org/10.4132/jptm.2014.10.26

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Abstract PDF

Background
Endoscopic ultrasound–guided fine needle aspiration cytology (EUS-FNAC) is currently the most commonly used procedure for obtaining cytologic specimens of the pancreas. It is accurate, minimally invasive, safe and cost-effective. However, there is discrepancy between cytological and surgical diagnoses. This study was aimed at evaluating the diagnostic accuracy of EUS-FNAC of the pancreas. Methods: We performed a retrospective review of 191 cases of pancreatic lesions initially diagnosed by EUS-FNAC with subsequent histological diagnosis between 2010 and 2012 in the Department of Pathology, Seoul National University Hospital. Cytologic and surgical diagnoses were categorized into five groups: negative, benign, atypical, malignant, and insufficient for diagnosis. Subsequently, 167 cases with satisfactory yield in both surgical and cytology specimens were statistically analyzed to determine correlations with diagnosis. Results: In comparison to surgical diagnoses, cytologic diagnoses were true-positive in 103 cases (61.7%), true-negative in 28 cases (16.8%), false-positive in 9 cases (5.4%), and false-negative in 27 cases (16.1%). The diagnostic accuracy was 78.4%, sensitivity was 79.2%, and specificity was 75.7%. The positive predictive value was 92.0%, and negative predictive value was 50.9%. Conclusions: EUS-FNAC has high accuracy, sensitivity, specificity and positive predictive value. Overcoming the limitations of EUS-FNAC will make it a useful and reliable diagnostic tool for accurate evaluation of pancreatic lesions.

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Gurudutt Gupta, Anila Sharma, Meenakshi Kamboj, Anurag Sharma, Sunil Pasricha, Garima Durga, Anurag Mehta, Avinash Rao
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Brief Case Report

Simultaneous Occurrence of Ductal Carcinoma In Situ within Juvenile Fibroadenoma in Both Breasts: A Brief Case Report: Mi Jung Kwon, Hye-Rim Park, Jinwon Seo, Dong Hoon Kim, Kyoonsoon Jung, Young Ah Lim, Lee Su Kim, Hoonsik Bae, In Ae Park, Soo Kee Min; Korean J Pathol. 2014;48(2):164-166. Published online April 28, 2014; DOI: https://doi.org/10.4132/KoreanJPathol.2014.48.2.164

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Original Articles

Cytopathologic Diagnosis of Pulmonary Diseases by Transthoracic Fine Needle Aspiration Biopsy.: In Ae Park, Eui Keun Ham; Korean J Cytopathol. 1990;1(1):27-35.

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Abstract PDF: The authors report series of 360 cases of transthoracic fine-needle aspiration cytology(TFNA) from Oct, 1982, through Aug. 1986 at the Seoul National University Hospital. A diagnosis of neoplastic lesion was established in 50.3% of the cases. A non-neoplastic diagnosis was made in 38.5%, nondiagnostic one in 6.5% and inadequate one in 4.7% of the total. Statistical findings on cytological diagnoses were as follows. Specificity was 100% ; sensitivity, 92%; predictive value for positive, 1.0 ; predicitive value for negative, 0.9 : concordance rate, 84.2% ; diagnostic accuracy in non-neoplastic lesion, 65.4%, and typing accuracy in malignant tumor, 0.77.

Fine Needle Aspiration Cytology of the Mediastinal Lesions.: In Ae Park, Eui Keun Ham; Korean J Cytopathol. 1990;1(1):43-50.

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Abstract PDF: The authors report 16 cases of mediastinal fine-needle aspiration cytology from Jan. 1985 to Mar. 1988 at the Seoul National University Hospital. Among them, diagnostic materal were obtained in fifteen cases, establishing the diagnosis of 7 thymomas, 2 germinomas, 2 neurogenic tumosr, 1 lymphoma, and 3 meastatic carcinomas. The 9 cytologic diagnoses could be confirmed by histologic examination in 8 patients and by another cytologic method in one patient, allowing concordance rate of 77%.

Evaluation of cytopathologic diagnosis of lung carcinoma.: In Ae Park, Eui Keun Ham; Korean J Cytopathol. 1991;2(1):20-27.

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Abstract PDF: In order to evaluate the role of cytopathologic diagnosis of sputum, bronchial washing and bronchial brushing in the diagnosis of lung cancer, we performed this study. The patients included in this study had undergone sputum, bronchial washing and brushing cytology over the 20-month period of 1985 through 1987. The total number of specimens was 5,495 of 2,242 patients, including 4,830 sputa and 665 bronchial washing and brushings. The average number of sputa and bronchial washings and brushings per case was 2.4 and 1.2 respectively. Among them, about 10% were unsatisfactory specimen, and three-fourths were negative specimens. In sputum cytology, the diagnosis of "atypical cells" was given to 3%, "suspicious for malignancy" was given to 1 %, and "malignancy" was given to 13%. In bronchial washing and brushing cytology, the diagnosis of "atypical cells", "suspicious for malignancy" and malignancy" was given to 6%, 3%, and 20% respectively. The cases diagnosed as "atypical cells" in cytology were actually malignancy in 95% and 84.8% of sputum and bronchial washing and brushings respectively, and the "suspicious for malignancy" were actually malignancy in 100% in both methods. The detection rates of malignancy were 50.4% and 55.2% in sputum and bronchial washing and brushing respectively, and the specificity was 100% in both methods. The accuracy of cell typing was 92% in sputum and 89.7% in bronchial washing and brushing.

Carcinoma in situ of the urinary bladder in bladder washing cytology.: Doo Hyun Chung, In Ae Park, Eui Keun Ham; Korean J Cytopathol. 1991;2(1):51-55.

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Abstract PDF: The diagnosis of carcinoma in situ of urinary bladder is difficult in that the symptoms and cystoscopic findings are nonspecific. The cytology of urine could be helpful for diagnosis of carcinoma in situ of urinary bladder. We present a case of bladder washing cytology of carcinoma in situ. A 54 year old man presented with dysuria for 1 year. Cystoscopic findings revealed multifocal reddish trabeculated lesions. The bladder washing cytology revealed rather uniform tumor cells which were singly scattered or forming syncytium in the clean background. The nuclei were round to oval with inconspicious nucleoli. The cystoscopic biopsy revealed typical histologic features of carcinoma in situ of urinary bladder.

Cancer Subtypes of Breast Carcinoma with Micropapillary and Mucinous Component Based on Immunohistochemical Profile.: Sun Young Min, Eun Jung Jung, Hyesil Seol, In Ae Park; Korean J Pathol. 2011;45(2):125-131.; DOI: https://doi.org/10.4132/KoreanJPathol.2011.45.2.125

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Abstract PDF

BACKGROUND
Micropapillary carcinoma (MPC) is known to have a worse prognosis than the other subtypes of breast cancer. Occasionally, MPC is observed in association with invasive ductal carcinoma not otherwise specified (IDC NOS), as well as mucinous carcinoma.
METHODS
We examined the immunohistochemical expression of an estrogen receptor, progesterone receptor, and human epidermal growth factor receptor 2 (HER2) in 127 cases of surgically resected MPC or IDC NOS with MPC. Further, we classified these cases based on their immunohistochemical profile.
RESULTS
Among the IDC NOS with MPC cases, 47 were luminal A (62.7%), 10 were luminal B (13.3%), and 9 were HER2 (12.0%). The MPC cases included 4 luminal A (50.0%), 2 luminal B (25.0%) and 1 HER2 (12.5%) subtypes. Of the mucinous carcinomas with MPC, 4 were grouped as luminal A (57.1%), 1 as luminal B (14.3%), and 2 as HER2 (28.6%) subtypes. However, among the mucinous carcinomas, 33 were categorized as luminal A (89.2%), 3 as luminal B (8.1%), and 1 as HER2 (2.7%) subtype, indicating a low incidence of HER2 subtype as compared to the other subtypes.
CONCLUSIONS
The luminal B and HER2 subtypes were prevalent in carcinomas with MPC. This result explains the poor prognosis of breast carcinomas with an MPC pattern.

Citations

Citations to this article as recorded by

Investigation of Clinical Histopathologic Features and Metabolic Parameters of ¹⁸F-FDG PET/CT in Invasive Breast Carcinoma with a Micropapillary Component
Elife Akgün, Göksel Alçın, Esra Canan Kelten Talu, Tevfik Fikret Çermik, Tuçe Söylemez Akkurt, Ebru Şen, Esra Arslan
Molecular Imaging and Radionuclide Therapy.2023; 32(3): 221. 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
Micropapillary variant of mucinous breast carcinoma: A distinct subtype
Katrina Collins, Andrew Ricci
The Breast Journal.2018; 24(3): 339. CrossRef
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
Journal of Pathology and Translational Medicine.2017; 51(4): 403. CrossRef

Case Report

Ovarian Sertoliform Endometrioid Carcinoma.: Han Seong Kim, Won Ae Lee, In Ae Park, Eui Keun Ham; Korean J Pathol. 1997;31(7):683-687.

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Abstract PDF: Sertolifonn endometrioid carcinoma (SEC) is a very rare malignant neoplasm arising from the surface epithelium of the ovary. We report one case of SEC occuring in the left ovary of a 73-year-old woman. The left ovary was totally replaced by a yellowish tan lobulated solid mass with focal cystic areas. Small tubules and elongated solid cord-like structures resembling a Sertoli-Leydig cell tumor or a Sertoli cell tumor were found microscopically. In some areas, confluent typical endometrioid carcinoma, adenofibromatous stroma, squamoid foci, and lutenizing stromal cell nests were noted. The tumor also demonstrated strong immunoreactivity with EMA (epithelial membrane antigen). Certain points of differentiation between SEC and SertoliLeydig or Sertoli cell tumors are discussed.

Original Article

The Current Practice of the Autopsy Services and the Autopsy Records at the Seoul National University Hospital.: Jeong Wook Seo, Yoon Sung Lee, Je Geun Chi, Ghee Young Choe, Soong Deok Lee, Chong Jai Kim, In Ae Park, Woo Ho Kim, Ja June Jang, Chul Woo Kim, Seong Hoe Park, Jung Bin Lee, Hyun Soon Lee, Yong Il Kim, Eui Keun Ham, Sang Kook Lee; Korean J Pathol. 1998;32(6):453-459.

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Abstract: This study outlines the current status of the autopsy practice and the medical records for autopsies at the Department of Pathology, Seoul National University Hospital. Total number of autopsy cases from 1954 to 1995 was 3,131. Adults aged over 17 were 371 cases and children were 2,515 cases. The demographic data in 245 cases was not available. The number of adult autopsies and its proportion among total number of autopsies during 10-year periods decreased from 144 cases (40%) during the 10-year-period from 1956 to 52 cases (3%) during the 10-year-period from 1986. The number of children cases during the same period groups increased slightly from 210 cases (58%) to 393 cases (25%). But the number of fetal cases increased rapidly from 7 cases (2%) to 1,146 cases (72%). Among fetal autopsies the proportion of fetuses died earlier than 24 weeks of gestation increased and this figure exceeds that of fetuses that died later than 24 weeks of gestation from 1992. Forty percent of the cases were submitted from the clinical departments of the Seoul National University Hospital but the remainders were referred from 73 hospitals. Final autopsy diagnoses were analysed according to the Korean Standard Classification of Disease (KCD)-3 coding system and by searching key words for all cases. Common diagnoses as coded among cases from 1990 were P9, P0, P2, Q2 and Q0. Common diseases by key words for adult cases were liver disease, tuberculosis and pneumonia. Common diseases for children cases were pneumonia, hyaline membrane disease, meningitis and tuberculosis. Through this study we could show the importance of autopsy services for fetuses. We could also establish a regular registration system for autopsies at general hospitals.

Case Report

Hamartoma of the Breast A report of two cases.: Sung Suk Paeng, In Ae Park, Woo Kyoung Moon, Dong Young Noh, Eui Keun Ham; Korean J Pathol. 1999;33(3):199-203.

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Abstract PDF: Hamartoma of the breast is a rare benign lesion presenting as palpable mass. They are, however, sometimes misdiagnosed by pathologist due to their resemblance to other benign or physiologic conditions of the breast. We report two cases of hamartomas of the breast. The clinical diagnosis was fibroadenoma in both cases. One patient was a 49-year-old woman presented with palpable mass for the duration of 5 months. Mammography showed a well demarcated round mass with homogeneous density which is slightly greater than the surrounding glandular tissue. Grossly it was a 3.5 3.0 2.0 cm sized round firm mass covered by thin fibrous tissue. Microscopically it was a well defined mass composed of variable amount of breast lobules, dilated ducts and adipose tissue surrounded by dense hyalinized connective tissue. The adipose tissue accounted for 30% of the entire lesion. Cellular atypism was not found. The other patient was a 18-year-old woman presented with palpable mass of the duration of 3 years, which was increased in size recently. Mammography demonstratesd a well delimited lobulated mass with lucent halo. Ultrasonography showed a well encapsulated low echoic mass admixed with high echoic areas. Grossly, it was a 4.0 4.0 2.0 cm sized well demarcated oval-shaped firm mass with translucent thin fibrous capsule.. Microscopic findings were similar to the former. The amount of adipose tissue was 20%.

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