Journal of Pathology and Translational Medicine

Gyungyub Gong

14 Articles

Development of CytoAcademy: a new web- and mobile-based E-learning platform for cytopathologists and cytotechnologists by the Korean Society for Cytopathology in the post-pandemic era: Ran Hong, Yosep Chong, Seung Wan Chae, Seung-Sook Lee, Gyungyub Gong; J Pathol Transl Med. 2024;58(6):261-264. Published online November 7, 2024; DOI: https://doi.org/10.4132/jptm.2024.10.02

2,828 View
256 Download

Abstract PDF: Since the late 1990s, online e-learning has offered unparalleled convenience and affordability, becoming increasingly popular among pathologists. Traditional learning theories have been successfully applied to web/mobile-based learning systems, with mobile technologies even enhancing conventional offline education. In cytopathology, hands-on microscope training has traditionally been paramount, complemented by real-case presentations and lectures. However, the coronavirus disease 2019 (COVID-19) pandemic disrupted regular academic activities, making online e-learning platforms essential. We designed a web/mobile-based learning platform to enhance continued medical education in cytopathology at various levels, particularly during the era of COVID-19 and beyond. Since 2021, we have integrated curriculum materials, virtual education files, and whole-slide images (WSIs) of cytopathology, submitted from over 200 institutions across Korea, with the support of numerous instructors. We develop a new e-learning platform named “CytoAcademy” composed of a basic session for each organ and level across the range of morphologic findings; on-demand lectures to enhance cytopathologic knowledge; WSI archives that allow users to explore various histologically confirmed cases; and a self-assessment test to help organize diagnostic knowledge acquired through the web/mobile-friendly learning system. The platform provides not just an opportunity to achieve a correct diagnosis, but also a learning experience based on problem-solving point. Members interact, identify their deficiencies, and focus on specific educational materials. In this manner, all participants can actively engage in creating and maintaining knowledge and foster a proactive approach to learning.

Diagnostic proficiency test using digital cytopathology and comparative assessment of whole slide images of cytologic samples for quality assurance program in Korea: Yosep Chong, Soon Auck Hong, Hoon Kyu Oh, Soo Jin Jung, Bo-Sung Kim, Ji Yun Jeong, Ho-Chang Lee, Gyungyub Gong; J Pathol Transl Med. 2023;57(5):251-264. Published online August 24, 2023; DOI: https://doi.org/10.4132/jptm.2023.07.17

4,316 View
311 Download
4 Web of Science
4 Crossref

Background
The Korean Society for Cytopathology introduced a digital proficiency test (PT) in 2021. However, many doubtful opinions remain on whether digitally scanned images can satisfactorily present subtle differences in the nuclear features and chromatin patterns of cytological samples.
Methods
We prepared 30 whole-slide images (WSIs) from the conventional PT archive by a selection process for digital PT. Digital and conventional PT were performed in parallel for volunteer institutes, and the results were compared using feedback. To assess the quality of cytological assessment WSIs, 12 slides were collected and scanned using five different scanners, with four cytopathologists evaluating image quality through a questionnaire.
Results
Among the 215 institutes, 108 and 107 participated in glass and digital PT, respectively. No significant difference was noted in category C (major discordance), although the number of discordant cases was slightly higher in the digital PT group. Leica, 3DHistech Pannoramic 250 Flash, and Hamamatsu NanoZoomer 360 systems showed comparable results in terms of image quality, feature presentation, and error rates for most cytological samples. Overall satisfaction was observed with the general convenience and image quality of digital PT.
Conclusions
As three-dimensional clusters are common and nuclear/chromatin features are critical for cytological interpretation, careful selection of scanners and optimal conditions are mandatory for the successful establishment of digital quality assurance programs in cytology.

Citations

Citations to this article as recorded by

Sensitivity, Specificity, and Cost–Benefit Effect Between Primary Human Papillomavirus Testing, Primary Liquid‐Based Cytology, and Co‐Testing Algorithms for Cervical Lesions
Chang Gok Woo, Seung‐Myoung Son, Hye‐Kyung Hwang, Jung‐Sil Bae, Ok‐Jun Lee, Ho‐Chang Lee
Diagnostic Cytopathology.2025; 53(1): 35. CrossRef
Integration of AI‐Assisted in Digital Cervical Cytology Training: A Comparative Study
Yihui Yang, Dongyi Xian, Lihua Yu, Yanqing Kong, Huaisheng Lv, Liujing Huang, Kai Liu, Hao Zhang, Weiwei Wei, Hongping Tang
Cytopathology.2025; 36(2): 156. CrossRef
Validation of digital image slides for diagnosis in cervico-vaginal cytology
Francisco Tresserra, Gemma Fabra, Olga Luque, Miriam Castélla, Carla Gómez, Carmen Fernández-Cid, Ignacio Rodríguez
Revista Española de Patología.2024; 57(3): 182. CrossRef
Improved Diagnostic Accuracy of Thyroid Fine-Needle Aspiration Cytology with Artificial Intelligence Technology
Yujin Lee, Mohammad Rizwan Alam, Hongsik Park, Kwangil Yim, Kyung Jin Seo, Gisu Hwang, Dahyeon Kim, Yeonsoo Chung, Gyungyub Gong, Nam Hoon Cho, Chong Woo Yoo, Yosep Chong, Hyun Joo Choi
Thyroid®.2024; 34(6): 723. CrossRef

Current status of cytopathology practice in Korea: impact of the coronavirus pandemic on cytopathology practice: Soon Auck Hong, Haeyoen Jung, Sung Sun Kim, Min-Sun Jin, Jung-Soo Pyo, Ji Yun Jeong, Younghee Choi, Gyungyub Gong, Yosep Chong; J Pathol Transl Med. 2022;56(6):361-369. Published online October 27, 2022; DOI: https://doi.org/10.4132/jptm.2022.09.21

3,374 View
99 Download
3 Web of Science
2 Crossref

Abstract PDF Supplementary Material

Background
The Continuous Quality Improvement program for cytopathology in 2020 was completed during the coronavirus pandemic. In this study, we report the result of the quality improvement program.
Methods
Data related to cytopathology practice from each institute were collected and processed at the web-based portal. The proficiency test was conducted using glass slides and whole-slide images (WSIs). Evaluation of the adequacy of gynecology (GYN) slides from each institution and submission of case glass slides and WSIs for the next quality improvement program were performed.
Results
A total of 214 institutions participated in the annual cytopathology survey in 2020. The number of entire cytopathology specimens was 8,220,650, a reduction of 19.0% from the 10,111,755 specimens evaluated in 2019. Notably, the number of respiratory cytopathology specimens, including sputum and bronchial washing/ brushing significantly decreased by 86.9% from 2019, which could be attributed to the global pandemic of coronavirus disease. The ratio of cases with atypical squamous cells to squamous intraepithelial lesions was 4.10. All participating institutions passed the proficiency test and the evaluation of adequacy of GYN slides.
Conclusions
Through the Continuous Quality Improvement program, the effect of coronavirus disease 2019 pandemic, manifesting with a reduction in the number of cytologic examinations, especially in respiratory-related specimen has been identified. The Continuous Quality Improvement Program of the Korean Society for Cytopathology can serve as the gold standard to evaluate the current status of cytopathology practice in Korea.

Citations

Citations to this article as recorded by

A stepwise approach to fine needle aspiration cytology of lymph nodes
Yosep Chong, Gyeongsin Park, Hee Jeong Cha, Hyun-Jung Kim, Chang Suk Kang, Jamshid Abdul-Ghafar, Seung-Sook Lee
Journal of Pathology and Translational Medicine.2023; 57(4): 196. CrossRef
Diagnostic proficiency test using digital cytopathology and comparative assessment of whole slide images of cytologic samples for quality assurance program in Korea
Yosep Chong, Soon Auck Hong, Hoon Kyu Oh, Soo Jin Jung, Bo-Sung Kim, Ji Yun Jeong, Ho-Chang Lee, Gyungyub Gong
Journal of Pathology and Translational Medicine.2023; 57(5): 251. CrossRef

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

10,737 View
660 Download
6 Web of Science
2 Crossref

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

Citations to this article as recorded by

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

Breast implant–associated anaplastic large cell lymphoma: the first South Korean case: Jongwon Lee, Hyungwoo Cho, Dok Hyun Yoon, Eun Key Kim, Gyungyub Gong, Cheolwon Suh, Joo-ryung Huh; J Pathol Transl Med. 2020;54(5):432-434. Published online August 18, 2020; DOI: https://doi.org/10.4132/jptm.2020.07.01

4,622 View
136 Download
5 Web of Science
5 Crossref

PDF

Citations

Citations to this article as recorded by

Breast Reconstruction after Breast Implant-Associated Anaplastic Large Cell Lymphoma Treatment: A Case Report and Literature Review
Won-Seob Lee, Tae-Gon Kim, Jun-Ho Lee, Il-Kug Kim
Journal of Clinical Medicine.2023; 12(5): 1885. CrossRef
Breast filler granuloma mistaken for implant rupture: A case report
Yong Seon Hwang, Je Yeon Byeon, Jun Hyuk Kim, Hwan Jun Choi, Mee Hye Oh, Da Woon Lee
Medicine.2023; 102(22): e33785. CrossRef
Implant replacement and anaplastic large cell lymphoma associated with breast implants: a quantitative analysis
Martina Vittorietti, Sergio Mazzola, Claudio Costantino, Daniele Domenico De Bella, Santo Fruscione, Nicole Bonaccorso, Martina Sciortino, Davide Costanza, Miriam Belluzzo, Alessandra Savatteri, Fabio Tramuto, Paolo Contiero, Giovanna Tagliabue, Palmira I
Frontiers in Oncology.2023;[Epub] CrossRef
Breast implant-associated anaplastic large cell lymphoma: a case report with a history of spontaneously resolved late seroma
Do Yeon Kim, Joon Hur, Woo Yeon Han, Kyunghyun Min, Jong Won Lee, Jin Sup Eom, Hyun Ho Han, Eun Key Kim
Archives of Aesthetic Plastic Surgery.2021; 27(4): 143. CrossRef
Comment on “Breast implant-associated anaplastic large cell lymphoma: the first South Korean case”
Il-Kug Kim, Tae Gon Kim
Journal of Pathology and Translational Medicine.2021; 55(6): 419. CrossRef

Primary Rhabdomyosarcoma of the Breast: Study of Three Cases at One Institution with a Review of Primary Breast Sarcomas: Junyoung Shin, Hee Jeong Kim, Dae-Yeon Kim, Gyungyub Gong, Kyung-Ja Cho; J Pathol Transl Med. 2019;53(5):308-316. Published online August 2, 2019; DOI: https://doi.org/10.4132/jptm.2019.07.22

6,124 View
134 Download
5 Web of Science
7 Crossref

Abstract PDF

Background
Primary breast sarcoma (PBS) is rare, comprising approximately 1% of breast malignancies. Rhabdomyosarcoma (RMS) accounts for an extremely small proportion of PBSs, often leading to delayed histologic confirmation.
Methods
Upon reviewing Asan Medical Center’s pathology database between 2000 and 2018, 41 PBS cases were retrieved, including three cases of primary RMS of the breast. Their clinicopathological features were analyzed, and the literature related to PBS and primary RMS of the breast was reviewed.
Results
We identified three primary breast RMS cases from our institution database, comprising 7.3% of PBS: one case each of spindle cell/sclerosing RMS (ssRMS), alveolar RMS (aRMS), and embryonal RMS (eRMS). All cases involved adolescents or young adults (14, 16, and 25 years, respectively) who underwent mastectomy or radiotherapy and were confirmed using immunohistochemical testing for myogenin, desmin, and myogenic differentiation. The ssRMS patient experienced recurrence at the operation site 4 months post-surgery despite undergoing concurrent chemoradiotherapy. The aRMS patient had multiple metastases at diagnosis and showed FAX3-FOXO1 fusion transcripts; she died 22 months after the diagnosis. The eRMS patient had enlarged axillary lymph nodes; post-radiotherapy, the lesion recurred as multiple metastases to the bone and lung. She died 18 months post-diagnosis.
Conclusions
Our experience on RMS cases suggests that spindle cell or small round cell malignancy in breasts of young female should raise suspicion for the possibility of primary or secondary RMS. To our knowledge, this is the second report of primary breast ssRMS and it may help clinicians who encounter this rare disease in the future.

Citations

Citations to this article as recorded by

Management of Pediatric Breast Masses for the Pediatric Surgeon: Expert Consensus Recommendations From the APSA Cancer Committee
Dana Schwartz, Elisabeth T. Tracy, Bindi Naik-Mathuria, Richard D. Glick, Stephanie F. Polites, Peter Mattei, David Rodeberg, Andres F. Espinoza, Sara A. Mansfield, Dave R. Lal, Meera Kotagal, Timothy Lautz, Jennifer Aldrink, Barrie S. Rich
Journal of Pediatric Surgery.2025; 60(2): 161916. CrossRef
Differential diagnosis of primary mesenchymal neoplasms of the breast
Mine Ozsen, Seyit Ali Volkan Polatkan, Ulviye Yalcınkaya, Sahsine Tolunay, Mustafa Sehsuvar Gokgoz
Clinical and Translational Oncology.2024; 27(1): 223. CrossRef
Primary breast rhabdomyosarcoma in a 17-year-old girl
Laxmi Singotia, V.S. Haritha
Journal of Cancer Research and Therapeutics.2023; 19(7): 2070. CrossRef
High-Grade Spindle Cell Lesions of the Breast
Esther Yoon, Qingqing Ding, Kelly Hunt, Aysegul Sahin
Surgical Pathology Clinics.2022; 15(1): 77. CrossRef
Primary Small Cell Malignancies of the Breast: Are They Rare Malignancies?
Kemal Behzatoğlu, Fernando Schmitt
Acta Cytologica.2022; 66(4): 347. CrossRef
Recurrent malignant phyllodes tumor of the breast: An extremely rare case of recurrence with only rhabdomyosarcoma components
Jia Han, Shuice Liu, Akihoro Shioya, Motona Kumagai, Emi Morioka, Miki Noguchi, Masafumi Inokuchi, Sohsuke Yamada
SAGE Open Medical Case Reports.2022;[Epub] CrossRef
Primary rhabdomyosarcoma: An extremely rare and aggressive variant of male breast cancer
Cătălin Bogdan Satală, Ioan Jung, Tivadar Jr Bara, Patricia Simu, Iunius Simu, Madalina Vlad, Rita Szodorai, Simona Gurzu
World Journal of Clinical Cases.2020; 8(19): 4466. CrossRef

Association between p53 Expression and Amount of Tumor-Infiltrating Lymphocytes in Triple-Negative Breast Cancer: Miseon Lee, In Ah Park, Sun-Hee Heo, Young-Ae Kim, Gyungyub Gong, Hee Jin Lee; J Pathol Transl Med. 2019;53(3):180-187. Published online March 11, 2019; DOI: https://doi.org/10.4132/jptm.2019.02.08

7,902 View
202 Download
17 Web of Science
17 Crossref

Abstract PDF

Background
Most triple-negative breast cancers (TNBCs) have a high histologic grade, are associated with high endoplasmic stress, and possess a high frequency of TP53 mutations. TP53 missense mutations lead to the production of mutant p53 protein and usually show high levels of p53 protein expression. Tumor-infiltrating lymphocytes (TILs) accumulate as part of the anti-tumor immune response and have a strong prognostic and predictive significance in TNBC. We aimed to elucidate the association between p53 expression and the amount of TILs in TNBC.
Methods
In 678 TNBC patients, we evaluated TIL levels and expression of endoplasmic stress molecules. Immunohistochemical examination of p53 protein expression was categorized into three groups: no, low, and high expression.
Results
No, low, and high p53 expression was identified in 44.1% (n = 299), 20.1% (n = 136), and 35.8% (n = 243) of patients, respectively. Patients with high p53 expression showed high histologic grade (p < .001), high TIL levels (p = .009), and high expression of endoplasmic reticulum stress-associated molecules (p-eIF2a, p = .013; XBP1, p = .007), compared to patients with low p53 expression. There was no significant difference in disease-free (p = .406) or overall survival rates (p = .444) among the three p53 expression groups.
Conclusions
High p53 expression is associated with increased expression of endoplasmic reticulum stress molecules and TIL influx.

Citations

Citations to this article as recorded by

The search for a TNBC vaccine: the guardian vaccine
Cory Fines, Helen McCarthy, Niamh Buckley
Cancer Biology & Therapy.2025;[Epub] CrossRef
Correlating p53 immunostaining patterns with somatic TP53 mutation and functional properties of mutant p53 in triple‐negative breast cancer
Meejeong Kim, Miseon Lee, Ahwon Lee, Byung‐Ock Choi, Woo‐Chan Park, Sung Hun Kim, Jieun Lee, Jun Kang
Histopathology.2025;[Epub] CrossRef
Updated Austrian treatment algorithm for metastatic triple-negative breast cancer
Rupert Bartsch, Gabriel Rinnerthaler, Edgar Petru, Daniel Egle, Michael Gnant, Marija Balic, Thamer Sliwa, Christian Singer
Wiener klinische Wochenschrift.2024; 136(11-12): 347. CrossRef
Triple negative breast cancer: Immunogenicity, tumor microenvironment, and immunotherapy
Sotiris Loizides, Anastasia Constantinidou
Frontiers in Genetics.2023;[Epub] CrossRef
Prognostic benefit of TILs independent of clinicopathological and molecular factors
Koen Brummel, Anneke L. Eerkens, Marco de Bruyn, Hans W. Nijman
British Journal of Cancer.2023; 129(5): 737. CrossRef
Dihydroartemisinin-Transferrin Adducts Enhance TRAIL-Induced Apoptosis in Triple-Negative Breast Cancer in a P53-Independent and ROS-Dependent Manner
Xinyu Zhou, Abel Soto-Gamez, Fleur Nijdam, Rita Setroikromo, Wim J. Quax
Frontiers in Oncology.2022;[Epub] CrossRef
New Challenges in the Differential Diagnosis of High-Grade Triple-Negative Breast Cancer and Serous Carcinoma
Andrii Puzyrenko, Chandler S Cortina, Julie M Jorns
International Journal of Surgical Pathology.2022; 30(7): 728. CrossRef
Prognostic analysis of cuproptosis-related gene in triple-negative breast cancer
Shengnan Sha, Luyi Si, Xinrui Wu, Yuanbiao Chen, Hui Xiong, Ying Xu, Wangrui Liu, Haijun Mei, Tao Wang, Mei Li
Frontiers in Immunology.2022;[Epub] CrossRef
p53 Missense Mutation is Associated with Immune Cell PD-L1 Expression in Triple-Negative Breast Cancer
Ai-Yan Xing, Long Liu, Ke Liang, Bin Wang
Cancer Investigation.2022; 40(10): 879. CrossRef
Crosstalk between Immune Checkpoint Modulators, Metabolic Reprogramming and Cellular Plasticity in Triple-Negative Breast Cancer
Arpita Poddar, Sushma R. Rao, Prashanth Prithviraj, George Kannourakis, Aparna Jayachandran
Current Oncology.2022; 29(10): 6847. CrossRef
The tumor microenvironment and triple-negative breast cancer aggressiveness: shedding light on mechanisms and targeting
Natsuki Furukawa, Vered Stearns, Cesar A. Santa-Maria, Aleksander S. Popel
Expert Opinion on Therapeutic Targets.2022; 26(12): 1041. CrossRef
Intracellular partners of fibroblast growth factors 1 and 2 - implications for functions
Katarzyna Dominika Sluzalska, Jakub Slawski, Martyna Sochacka, Agata Lampart, Jacek Otlewski, Malgorzata Zakrzewska
Cytokine & Growth Factor Reviews.2021; 57: 93. CrossRef
Targeted Chinese Medicine Delivery by A New Family of Biodegradable Pseudo-Protein Nanoparticles for Treating Triple-Negative Breast Cancer: In Vitro and In Vivo Study
Hiu Yee Kwan, Qinghua Xu, Ruihong Gong, Zhaoxiang Bian, Chih-Chang Chu
Frontiers in Oncology.2021;[Epub] CrossRef
Transcriptomic Properties of HER2+ Ductal Carcinoma In Situ of the Breast Associate with Absence of Immune Cells
Marie Colombe Agahozo, Marcel Smid, Ronald van Marion, Dora Hammerl, Thierry P. P. van den Bosch, Mieke A. M. Timmermans, Chayenne J. Heijerman, Pieter J. Westenend, Reno Debets, John W. M. Martens, Carolien H. M. van Deurzen
Biology.2021; 10(8): 768. CrossRef
With Our Powers Combined
Lawrence Kasherman, Katherine Karakasis, Amit M. Oza
The Cancer Journal.2021; 27(6): 511. CrossRef
The Research Progress on the Prognostic Value of the Common Hematological Parameters in Peripheral Venous Blood in Breast Cancer

Li Chen, Xiangyi Kong, Chengrui Yan, Yi Fang, Jing Wang
OncoTargets and Therapy.2020; Volume 13: 1397. CrossRef
Biomolecular Factors Represented by Bcl-2, p53, and Tumor-Infiltrating Lymphocytes Predict Response for Adjuvant Anthracycline Chemotherapy in Patients with Early Triple-Negative Breast Cancer

Xenia Elena Bacinschi, Anca Zgura, Inga Safta, Rodica Anghel
Cancer Management and Research.2020; Volume 12: 11965. CrossRef

Interobserver Variability of Ki-67 Measurement in Breast Cancer: Yul Ri Chung, Min Hye Jang, So Yeon Park, Gyungyub Gong, Woo-Hee Jung, The Korean Breast Pathology Ki- Study Group; J Pathol Transl Med. 2016;50(2):129-137. Published online February 15, 2016; DOI: https://doi.org/10.4132/jptm.2015.12.24

10,906 View
123 Download
24 Web of Science
27 Crossref

Abstract PDF

Background
As measurement of Ki-67 proliferation index is an important part of breast cancer diagnostics, we conducted a multicenter study to examine the degree of concordance in Ki-67 counting and to find factors that lead to its variability. Methods: Thirty observers from thirty different institutions reviewed Ki-67–stained slides of 20 different breast cancers on whole sections and tissue microarray (TMA) by online system. Ten of the 20 breast cancers had hot spots of Ki-67 expression. Each observer scored Ki-67 in two different ways: direct counting (average vs. hot spot method) and categorical estimation. Intraclass correlation coefficient (ICC) of Ki-67 index was calculated for comparative analysis. Results: For direct counting, ICC of TMA was slightly higher than that of whole sections using average method (0.895 vs 0.858). The ICC of tumors with hot spots was lower than that of tumors without (0.736 vs 0.874). In tumors with hot spots, observers took an additional counting from the hot spot; the ICC of whole sections using hot spot method was still lower than that of TMA (0.737 vs 0.895). In categorical estimation, Ki-67 index showed a wide distribution in some cases. Nevertheless, in tumors with hot spots, the range of distribution in Ki-67 categories was decreased with hot spot method and in TMA platform. Conclusions: Interobserver variability of Ki-67 index for direct counting and categorical estimation was relatively high. Tumors with hot spots showed greater interobserver variability as opposed to those without, and restricting the measurement area yielded lower interobserver variability.

Citations

Citations to this article as recorded by

Comparative analysis of Ki-67 labeling index morphometry using deep learning, conventional image analysis, and manual counting
Mohammad Rizwan Alam, Kyung Jin Seo, Kwangil Yim, Phoebe Liang, Joe Yeh, Chifu Chang, Yosep Chong
Translational Oncology.2025; 51: 102159. CrossRef
Machine Learning-Based Approaches for Breast Density Estimation from Mammograms: A Comprehensive Review
Khaldoon Alhusari, Salam Dhou
Journal of Imaging.2025; 11(2): 38. CrossRef
Letter re: A critical appraisal of the DATA trial analysis on the prognostic and predictive value of the luminal-like subtype
M. Rizk, K. Mokbel
ESMO Open.2025; 10(5): 105067. CrossRef
Ki-67 Testing in Breast Cancer: Assessing Variability With Scoring Methods and Specimen Types and the Potential Subsequent Impact on Therapy Eligibility
Therese Bocklage, Virgilius Cornea, Caylin Hickey, Justin Miller, Jessica Moss, Mara Chambers, S. Emily Bachert
Applied Immunohistochemistry & Molecular Morphology.2024; 32(3): 119. CrossRef
Interobserver agreement and diagnostic challenges of Congo red staining for amyloid detection on fat pad aspiration biopsies
Levent Trabzonlu, T. Leif Helland, Melanie C. Kwan, Nathalie Kumiega, M. Lisa Zhang, Ivan Chebib, Vanda F. Torous
Journal of the American Society of Cytopathology.2024; 13(5): 359. CrossRef
Assessment of the Predictive Role of Ki-67 in Breast Cancer Patients’ Responses to Neoadjuvant Chemotherapy
Ghizlane Rais, Rania Mokfi, Farah Boutaggount, Meryem Maskrout, Soundouss Bennour, Chaymae Senoussi, Fadoua Rais
European Journal of Breast Health.2024; : 199. CrossRef
Improving the accuracy of reporting Ki-67 IHC by using an AI tool
Sahil Ajit Saraf, Aahan Singh, Wai Po Kevin Teng, Sencer Karakaya, M. Logaswari, Kaveh Taghipour, Rajasa Jialdasani, Li Yan Khor, Kiat Hon Lim, Sathiyamoorthy Selvarajan, Vani Ravikumar, Md Ali Osama, Priti Chatterjee, Santosh KV
Heliyon.2024; 10(22): e40193. CrossRef
Predictive Value of Ki-67 Index in Evaluating Sporadic Vestibular Schwannoma Recurrence: Systematic Review and Meta-analysis
Kunal Vakharia, Hirotaka Hasegawa, Christopher Graffeo, Mohammad H. A. Noureldine, Salomon Cohen-Cohen, Avital Perry, Matthew L. Carlson, Colin L. W. Driscoll, Maria Peris-Celda, Jamie J. Van Gompel, Michael J. Link
Journal of Neurological Surgery Part B: Skull Base.2023; 84(02): 119. CrossRef
Venous invasion and lymphatic invasion are correlated with the postoperative prognosis of pancreatic neuroendocrine neoplasm
Sho Kiritani, Junichi Arita, Yuichiro Mihara, Rihito Nagata, Akihiko Ichida, Yoshikuni Kawaguchi, Takeaki Ishizawa, Nobuhisa Akamatsu, Junichi Kaneko, Kiyoshi Hasegawa
Surgery.2023; 173(2): 365. CrossRef
Automated Molecular Subtyping of Breast Carcinoma Using Deep Learning Techniques
S. Niyas, Ramya Bygari, Rachita Naik, Bhavishya Viswanath, Dhananjay Ugwekar, Tojo Mathew, J Kavya, Jyoti R Kini, Jeny Rajan
IEEE Journal of Translational Engineering in Health and Medicine.2023; 11: 161. CrossRef
Grade Progression and Intrapatient Tumor Heterogeneity as Potential Contributors to Resistance in Gastroenteropancreatic Neuroendocrine Tumors
Diana Grace Varghese, Jaydira Del Rivero, Emily Bergsland
Cancers.2023; 15(14): 3712. CrossRef
Diagnostic Role and Prognostic Impact of PSAP Immunohistochemistry: A Tissue Microarray Study on 31,358 Cancer Tissues
Laura Sophie Tribian, Maximilian Lennartz, Doris Höflmayer, Noémi de Wispelaere, Sebastian Dwertmann Rico, Clara von Bargen, Simon Kind, Viktor Reiswich, Florian Viehweger, Florian Lutz, Veit Bertram, Christoph Fraune, Natalia Gorbokon, Sören Weidemann, C
Diagnostics.2023; 13(20): 3242. CrossRef
AI-Powered Segmentation of Invasive Carcinoma Regions in Breast Cancer Immunohistochemical Whole-Slide Images
Yiqing Liu, Tiantian Zhen, Yuqiu Fu, Yizhi Wang, Yonghong He, Anjia Han, Huijuan Shi
Cancers.2023; 16(1): 167. CrossRef
Expression of estrogen and progesterone receptors, HER2 protein and Ki-67 proliferation index in breast carcinoma in both tumor tissue and tissue microarray
UP Hacısalihoğlu, MA Dogan
Biotechnic & Histochemistry.2022; 97(4): 298. CrossRef
Diffusive Ki67 and vimentin are associated with worse recurrence-free survival of upper tract urothelial carcinoma: A retrospective cohort study from bench to bedside
Che Hsueh Yang, Wei Chun Weng, Yen Chuan Ou, Yi Sheng Lin, Li Hua Huang, Chin Heng Lu, Tang Yi Tsao, Chao Yu Hsu, Min Che Tung
Urologic Oncology: Seminars and Original Investigations.2022; 40(3): 109.e21. CrossRef
Should Ki-67 be adopted to select breast cancer patients for treatment with adjuvant abemaciclib?
P. Tarantino, H.J. Burstein, N.U. Lin, I.E. Krop, E.P. Winer, S.J. Schnitt, E.P. Hamilton, S.A. Hurvitz, H.S. Rugo, G. Curigliano, S.M. Tolaney
Annals of Oncology.2022; 33(3): 234. CrossRef
A novel deep classifier framework for automated molecular subtyping of breast carcinoma using immunohistochemistry image analysis
Tojo Mathew, S. Niyas, C.I. Johnpaul, Jyoti R. Kini, Jeny Rajan
Biomedical Signal Processing and Control.2022; 76: 103657. CrossRef
Deep learning for the standardized classification of Ki-67 in vulva carcinoma: A feasibility study
Matthias Choschzick, Mariam Alyahiaoui, Alexander Ciritsis, Cristina Rossi, André Gut, Patryk Hejduk, Andreas Boss
Heliyon.2021; 7(7): e07577. CrossRef
Oncotype DX Predictive Nomogram for Recurrence Score Output: The Novel System ADAPTED01 Based on Quantitative Immunochemistry Analysis
Fabio Marazzi, Roberto Barone, Valeria Masiello, Valentina Magri, Antonino Mulè, Angela Santoro, Federica Cacciatori, Luca Boldrini, Gianluca Franceschini, Francesca Moschella, Giuseppe Naso, Silverio Tomao, Maria Antonietta Gambacorta, Giovanna Mantini,
Clinical Breast Cancer.2020; 20(5): e600. CrossRef
Study of Ki-67 index in the molecular subtypes of breast cancer: Inter-observer variability and automated scoring
Divya Meermira, Meenakshi Swain, Swarnalata Gowrishankar
Indian Journal of Cancer.2020; 57(3): 289. CrossRef
Improving the accuracy of gastrointestinal neuroendocrine tumor grading with deep learning
Darshana Govind, Kuang-Yu Jen, Karen Matsukuma, Guofeng Gao, Kristin A. Olson, Dorina Gui, Gregory. E. Wilding, Samuel P. Border, Pinaki Sarder
Scientific Reports.2020;[Epub] CrossRef
Practical approaches to automated digital image analysis of Ki-67 labeling index in 997 breast carcinomas and causes of discordance with visual assessment
Ah-Young Kwon, Ha Young Park, Jiyeon Hyeon, Seok Jin Nam, Seok Won Kim, Jeong Eon Lee, Jong-Han Yu, Se Kyung Lee, Soo Youn Cho, Eun Yoon Cho, Irina V. Lebedeva
PLOS ONE.2019; 14(2): e0212309. CrossRef
Evaluation of Ki-67 Index in Core Needle Biopsies and Matched Breast Cancer Surgical Specimens
Soomin Ahn, Junghye Lee, Min-Sun Cho, Sanghui Park, Sun Hee Sung
Archives of Pathology & Laboratory Medicine.2018; 142(3): 364. CrossRef
Assessment of Ki-67 for Predicting Effective Prognosis in Breast Cancer Subtypes
Sangjung Park, Sunyoung Park, Jungho Kim, Sungwoo Ahn, Kwang Hwa Park, Hyeyoung Lee
Biomedical Science Letters.2018; 24(1): 9. CrossRef
Quantitative tumor heterogeneity assessment on a nuclear population basis
Anne‐Sofie Wessel Lindberg, Knut Conradsen, Rasmus Larsen, Michael Friis Lippert, Rasmus Røge, Mogens Vyberg
Cytometry Part A.2017; 91(6): 574. CrossRef
A comparison of Ki-67 counting methods in luminal Breast Cancer: The Average Method vs. the Hot Spot Method
Min Hye Jang, Hyun Jung Kim, Yul Ri Chung, Yangkyu Lee, So Yeon Park, William B. Coleman
PLOS ONE.2017; 12(2): e0172031. CrossRef
A Novel Breast Cancer Index for Prediction of Distant Recurrence in HR+ Early-Stage Breast Cancer with One to Three Positive Nodes
Yi Zhang, Brock E. Schroeder, Piiha-Lotta Jerevall, Amy Ly, Hannah Nolan, Catherine A. Schnabel, Dennis C. Sgroi
Clinical Cancer Research.2017; 23(23): 7217. CrossRef

Cytological Evaluation and REBA HPV-ID HPV Testing of Newly Developed Liquid-Based Cytology, EASYPREP: Comparison with SurePath: Youn Soo Lee, Gyungyub Gong, Jin Hee Sohn, Ki Sung Ryu, Jung Hun Lee, Shin Kwang Khang, Kyung-Ja Cho, Yong-Man Kim, Chang Suk Kang; Korean J Pathol. 2013;47(3):265-274. Published online June 25, 2013; DOI: https://doi.org/10.4132/KoreanJPathol.2013.47.3.265

10,626 View
94 Download
4 Crossref

Abstract PDF

Background

The objective of this study was to evaluate a newly-developed EASYPREP liquid-based cytology method in cervicovaginal specimens and compare it with SurePath.

Methods

Cervicovaginal specimens were prospectively collected from 1,000 patients with EASYPREP and SurePath. The specimens were first collected by brushing for SurePath and second for EASYPREP. The specimens of both methods were diagnosed according to the Bethesda System. Additionally, we performed to REBA HPV-ID genotyping and sequencing analysis for human papillomavirus (HPV) on 249 specimens.

Results

EASYPREP and SurePath showed even distribution of cells and were equal in cellularity and staining quality. The diagnostic agreement between the two methods was 96.5%. Based on the standard of SurePath, the sensitivity, specificity, positive predictive value, and negative predictive value of EASYPREP were 90.7%, 99.2%, 94.8%, and 98.5%, respectively. The positivity of REBA HPV-ID was 49.4% and 95.1% in normal and abnormal cytological samples, respectively. The result of REBA HPV-ID had high concordance with sequencing analysis.

Conclusions

EASYPREP provided comparable results to SurePath in the diagnosis and staining quality of cytology examinations and in HPV testing with REBA HPV-ID. EASYPREP could be another LBC method choice for the cervicovaginal specimens. Additionally, REBA HPV-ID may be a useful method for HPV genotyping.

Citations

Citations to this article as recorded by

Virome capture sequencing for comprehensive HPV genotyping in cervical samples
Thanayod Sasivimolrattana, Sasiprapa Liewchalermwong, Wasun Chantratita, Insee Sensorn, Arkom Chaiwongkot, Parvapan Bhattarakosol
Science Progress.2025;[Epub] CrossRef
High-Risk Human Papillomavirus Detection via Cobas® 4800 and REBA HPV-ID® Assays
Sasiprapa Liewchalermwong, Shina Oranratanaphan, Wichai Termrungruanglert, Surang Triratanachat, Patou Tantbirojn, Nakarin Kitkumthorn, Parvapan Bhattarakosol, Arkom Chaiwongkot
Viruses.2022; 14(12): 2713. CrossRef
Evaluation of nuclear chromatin using grayscale intensity and thresholded percentage area in liquid‐based cervical cytology
Hyekyung Lee, Myungein Han, Taejo Yoo, Chanho Jung, Hyun‐Jin Son, Migyung Cho
Diagnostic Cytopathology.2018; 46(5): 384. CrossRef
Comparison of EASYPREP® and SurePath® in thyroid fine‐needle aspiration
Yosep Chong, Ki Hyun Baek, Jee Young Kim, Tae‐Jung Kim, Eun Jung Lee, Chang Suk Kang
Diagnostic Cytopathology.2016; 44(4): 283. CrossRef

Outcome of "Atypical Squamous Cells" in Cervical Cytology: Follow-up Assessment by Loop Electrical Excision Procedure: Joon Seon Song, Ilseon Hwang, Gyungyub Gong; Korean J Pathol. 2012;46(4):359-364. Published online August 23, 2012; DOI: https://doi.org/10.4132/KoreanJPathol.2012.46.4.359

7,830 View
64 Download
1 Crossref

Abstract PDF

Background

We have retrospectively assessed the incidence and outcome of women diagnosed during a hospital-based cytology screening program with "atypical squamous cells (ASC)" and followed-up with loop electrical excision procedure (LEEP).

Methods

We analyzed 173,947 cases of cervical smears' follow-up cytology and histology findings. Previous or archival cytology with LEEP results were retrieved for 390 women with ASC of undetermined significance (ASC-US) and 112 with ASC, cannot exclude high-grade squamous intraepithelial lesion (ASC-H).

Results

On the follow-up cytology, of the 390 women initially diagnosed with ASC-US, 130 (33.3%) had no follow-up records of smears before LEEP; smears of 18 (4.6%) were negative for cytologic abnormalities, 193 (49.5%) were ASC-US, 24 (6.2%) were ASC-H, 111 (28.5%) were low grade squamous intraepithelial lesion (SIL), and 44 (11.4%) were high grade SIL. LEEP findings in these 390 women showed that 183 (46.9%) were negative, 73 (18.7%) were graded as cervical intraepithelial neoplasia (CIN) 1, 25 (6.4%) as CIN 2, 102 (26.2%) as CIN 3, and 7 (1.8%) had carcinoma. LEEP was performed in 112 women initially diagnosed with ASC-H; 36 (32.1%) were negative, 4 (3.6%) were graded as CIN 1, 7 (6.3%) as CIN 2, 60 (53.6%) as CIN 3, and 5 (4.5%) with carcinoma.

Conclusions

Patients with ASC-H smears were at increased risk of SIL or carcnoma compared with patients with ASC-US. Careful follow-up is required in ASC patients.

Citations

Citations to this article as recorded by

Incisal margin condition after LEEP for cervical intraepithelial neoplasia patients and prognosis
Hong Chen, Xiufeang Liu, Lina Xu
Experimental and Therapeutic Medicine.2016; 12(2): 1019. CrossRef

Proposal for Creating a Guideline for Cancer Registration of Microinvasive Tumors of the Breast and Ovary (II): Jin Hee Sohn, Gyungyub Gong, Kyu Rae Kim, Chang Suk Kang, Youn Soo Lee, Jin Man Kim, Woo Hee Jung, Kwang Sun Suh; Korean J Pathol. 2012;46(3):226-232. Published online June 22, 2012; DOI: https://doi.org/10.4132/KoreanJPathol.2012.46.3.226

10,096 View
62 Download
2 Crossref

Abstract PDF

Background

Cancer registration in Korea has a longer than 30-years of history, during which time cancer registration has improved and become well-organized. Cancer registries are fundamental for cancer control and multi-center collaborative research. However, there have been discrepancies in assigning behavior codes. Thus, we intend to propose appropriate behavior codes for the International Classification of Disease Oncology, 3rd edition (ICD-O-3) for microinvasive tumors of the ovary and breast not only to improve the quality of the cancer registry but also to prevent conflicts.

Methods

As in series I, two pathology study groups and the Cancer Registration Committee of the Korean Society of Pathologists (KSP) participated. To prepare a questionnaire on provisional behavior code, the relevant subjects were discussed in the workshop, and consensus was obtained by convergence of opinion from members of KSP.

Results

Microinvasive tumor of the breast should be designated as a microinvasive carcinoma which was proposed as malignant tumor (/3). Serous borderline tumor with microinvasion of the ovary was proposed as borderline tumor (/1), and mucinous borderline tumor with microinvasion of the ovary as either borderline (/1) or carcinoma (/3) according to the tumor cell nature.

Conclusions

Some issues should be elucidated with the accumulation of more experience and knowledge. Here, however, we present our second proposal.

Citations

Citations to this article as recorded by

Update on the Proposal for Creating a Guideline for Cancer Registration of the Gastrointestinal Tumors (I-2)
Eun Sun Jung, Yun Kyung Kang, Mee-Yon Cho, Joon Mee Kim, Won Ae Lee, Hee Eun Lee, Sunhoo Park, Jin Hee Sohn, So-Young Jin
Korean Journal of Pathology.2012; 46(5): 443. CrossRef
A Proposal for Creating a Guideline for Cancer Registration of the Fibromatosis, PEComa Group, Malignant LymphomaIn Situand Dendritic Cell Tumors (III)
Changyoung Yoo, Chang Suk Kang, Yoon La Choi, Hye Yoon Kang, Jin Man Kim, Young Hye Koh, Joo Hee Lee, Seung Sook Lee, In Sun Kim, Dong Hoon Kim, Yong Ku Park, Jin Hee Sohn
Korean Journal of Pathology.2012; 46(5): 436. CrossRef

The Ratio of Atypical Ductal Hyperplasia Foci to Core Numbers in Needle Biopsy: A Practical Index Predicting Breast Cancer in Subsequent Excision: Jeong-Ju Lee, Hee Jin Lee, Jun Kang, Jeong-Hyeon Jo, Gyungyub Gong; Korean J Pathol. 2012;46(1):15-21. Published online February 23, 2012; DOI: https://doi.org/10.4132/KoreanJPathol.2012.46.1.15

10,977 View
49 Download
1 Crossref

Abstract PDF

Background

Although core needle biopsy (CNB) is considered to be the standard technique for histological diagnosis of breast lesions, it is less reliable for diagnosing atypical ductal hyperplasia (ADH). We therefore assessed the characteristics of CNB-diagnosed ADH that are more likely to be associated with more advanced lesions on subsequent surgical excision.

Methods

We retrospectively examined 239 consecutive CNBs, 127 of which were diagnosed as ADH following surgical excision, performed at Asan Medical Center between 1995 and 2010. Archival slides were analyzed for the number of cores per specimen, the number of ADH foci, and the ratio of ADH foci to number of cores (FC ratio).

Results

We found that ADH foci in 3 or more cores (p=0.003) and the presence of ADH in 3 or more foci (p=0.002) were correlated with malignancy following excision lesion. Moreover, an FC>1.1 was significantly associated with malignancy in the subsequent excision (p=0.000).

Conclusions

Including the number of ADH foci, the number of cores involved according to ADH, FC ratio, and histologic type in a pathology report of CNB may help in making clinical decisions about surgical excision.

Citations

Citations to this article as recorded by

Active Surveillance for Atypical Ductal Hyperplasia and Ductal Carcinoma In Situ
Rachel Miceli, Cecilia L Mercado, Osvaldo Hernandez, Chloe Chhor
Journal of Breast Imaging.2023; 5(4): 396. CrossRef

WITHDRAWN:Primary Rhabdomyosarcoma of the Breast: A Report of Two Cases and Literature Review: Junyoung Shin, Hee Jeong Kim, Dae-Yeon Kim, Gyungyub Gong, Kyung-Ja Cho; Received August 6, 2018 Accepted September 13, 2018 Published online October 4, 2018; DOI: https://doi.org/10.4132/jptm.2018.09.14

3,601 View
62 Download
1 Crossref

Citations

Citations to this article as recorded by

Primary Alveolar Rhabdomyosarcoma of the Breast in an Adult: An Extremely Rare Case
Helen J. Trihia, Natasa Novkovic, Ioannis Provatas, Anastasios Mavrogiorgis, Evangelos Lianos
Case Reports in Pathology.2019; 2019: 1. CrossRef

Author index