Journal of Pathology and Translational Medicine

Yun Kyung Kang

8 Articles

A scoring system for the diagnosis of non-alcoholic steatohepatitis from liver biopsy: Kyoungbun Lee, Eun Sun Jung, Eunsil Yu, Yun Kyung Kang, Mee-Yon Cho, Joon Mee Kim, Woo Sung Moon, Jin Sook Jeong, Cheol Keun Park, Jae-Bok Park, Dae Young Kang, Jin Hee Sohn, So-Young Jin; J Pathol Transl Med. 2020;54(3):228-236. Published online April 15, 2020; DOI: https://doi.org/10.4132/jptm.2020.03.07

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Background
Liver biopsy is the essential method to diagnose non-alcoholic steatohepatitis (NASH), but histological features of NASH are too subjective to achieve reproducible diagnoses in early stages of disease. We aimed to identify the key histological features of NASH and devise a scoring model for diagnosis.
Methods
Thirteen pathologists blindly assessed 12 histological factors and final histological diagnoses (‘not-NASH,’ ‘borderline,’ and ‘NASH’) of 31 liver biopsies that were diagnosed as non-alcoholic fatty liver disease (NAFLD) or NASH before and after consensus. The main histological parameters to diagnose NASH were selected based on histological diagnoses and the diagnostic accuracy and agreement of 12 scoring models were compared for final diagnosis and the NAFLD Activity Score (NAS) system.
Results
Inter-observer agreement of final diagnosis was fair (κ = 0.25) before consensus and slightly improved after consensus (κ = 0.33). Steatosis at more than 5% was the essential parameter for diagnosis. Major diagnostic factors for diagnosis were fibrosis except 1C grade and presence of ballooned cells. Minor diagnostic factors were lobular inflammation ( ≥ 2 foci/ × 200 field), microgranuloma, and glycogenated nuclei. All 12 models showed higher inter-observer agreement rates than NAS and post-consensus diagnosis (κ = 0.52–0.69 vs. 0.33). Considering the reproducibility of factors and practicability of the model, summation of the scores of major (× 2) and minor factors may be used for the practical diagnosis of NASH.
Conclusions
A scoring system for the diagnosis of NAFLD would be helpful as guidelines for pathologists and clinicians by improving the reproducibility of histological diagnosis of NAFLD.

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Presurgery health influences outcomes following vertical sleeve gastrectomy in adolescents
Debi Swertfeger, Ahlee Kim, Hannah Sexmith, Maria E. Moreno‐Fernandez, W. Sean Davidson, Michael Helmrath, Todd Jenkins, Tsuyoshi Okura, Esmond Geh, Stavra A. Xanthakos, Sara Szabo, Takahisa Nakamura, Senad Divanovic, Amy Sanghavi Shah
Obesity.2024;[Epub] CrossRef
Changes in indications for outpatient percutaneous liver biopsy over 5 years: from hepatitis C to fatty liver disease
Marlone Cunha-Silva, Luíza D. Torres, Mariana F. Fernandes, Tirzah de M. Lopes Secundo, Marina C.G. Moreira, Ademar Yamanaka, Leonardo T. Monici, Larissa B. Eloy da Costa, Daniel F. Mazo, Tiago Sevá-Pereira
Gastroenterología y Hepatología.2022; 45(8): 579. CrossRef
Changes in indications for outpatient percutaneous liver biopsy over 5 years: from hepatitis C to fatty liver disease
Marlone Cunha-Silva, Luíza D. Torres, Mariana F. Fernandes, Tirzah de M. Lopes Secundo, Marina C.G. Moreira, Ademar Yamanaka, Leonardo T. Monici, Larissa B. Eloy da Costa, Daniel F. Mazo, Tiago Sevá-Pereira
Gastroenterología y Hepatología (English Edition).2022; 45(8): 579. CrossRef

Standardized Pathology Report for Colorectal Cancer, 2nd Edition: Baek-hui Kim, Joon Mee Kim, Gyeong Hoon Kang, Hee Jin Chang, Dong Wook Kang, Jung Ho Kim, Jeong Mo Bae, An Na Seo, Ho Sung Park, Yun Kyung Kang, Kyung-Hwa Lee, Mee Yon Cho, In-Gu Do, Hye Seung Lee, Hee Kyung Chang, Do Youn Park, Hyo Jeong Kang, Jin Hee Sohn, Mee Soo Chang, Eun Sun Jung, So-Young Jin, Eunsil Yu, Hye Seung Han, Youn Wha Kim; J Pathol Transl Med. 2020;54(1):1-19. Published online November 13, 2019; DOI: https://doi.org/10.4132/jptm.2019.09.28

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Abstract PDF Supplementary Material

The first edition of the ‘Standardized Pathology Report for Colorectal Cancer,’ which was developed by the Gastrointestinal Pathology Study Group (GIP) of the Korean Society of Pathologists, was published 13 years ago. Meanwhile, there have been many changes in the pathologic diagnosis of colorectal cancer (CRC), pathologic findings included in the pathology report, and immunohistochemical and molecular pathology required for the diagnosis and treatment of colorectal cancer. In order to reflect these changes, we (GIP) decided to make the second edition of the report. The purpose of this standardized pathology report is to provide a practical protocol for Korean pathologists, which could help diagnose and treat CRC patients. This report consists of “standard data elements” and “conditional data elements.” Basic pathologic findings and parts necessary for prognostication of CRC patients are classified as “standard data elements,” while other prognostic factors and factors related to adjuvant therapy are classified as “conditional data elements” so that each institution could select the contents according to the characteristics of the institution. The Korean version is also provided separately so that Korean pathologists can easily understand and use this report. We hope that this report will be helpful in the daily practice of CRC diagnosis.

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Jeeyong Lee, Da Yeon Kim, Younjoo Kim, Ui Sup Shin, Kwang Seok Kim, Eun Ju Kim
International Journal of Molecular Sciences.2023; 24(2): 978. CrossRef
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Jung Kyong Shin, Yoon Ah Park, Jung Wook Huh, Seong Hyeon Yun, Hee Cheol Kim, Woo Yong Lee, Seok Hyung Kim, Sang Yun Ha, Yong Beom Cho
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May Raouf, Ahmed A. Sabry, Mahinour A. Ragab, Samar El Achy, Amira Amer
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Hyunseung Oh, Soon Gu Kim, Sung Uk Bae, Sang Jun Byun, Shin Kim, Jae-Ho Lee, Ilseon Hwang, Sun Young Kwon, Hye Won Lee
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Automated Hybrid Model for Detecting Perineural Invasion in the Histology of Colorectal Cancer
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Interobserver Agreement on Pathologic Features of Liver Biopsy Tissue in Patients with Nonalcoholic Fatty Liver Disease: Eun Sun Jung, Kyoungbun Lee, Eunsil Yu, Yun Kyung Kang, Mee-Yon Cho, Joon Mee Kim, Woo Sung Moon, Jin Sook Jeong, Cheol Keun Park, Jae-Bok Park, Dae Young Kang, Jin Hee Sohn, So-Young Jin; J Pathol Transl Med. 2016;50(3):190-196. Published online April 18, 2016; DOI: https://doi.org/10.4132/jptm.2016.03.01

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Abstract PDF

Background
The histomorphologic criteria for the pathological features of liver tissue from patients with non-alcoholic fatty liver disease (NAFLD) remain subjective, causing confusion among pathologists and clinicians. In this report, we studied interobserver agreement of NAFLD pathologic features and analyzed causes of disagreement.
Methods
Thirty-one cases of clinicopathologically diagnosed NAFLD from 10 hospitals were selected. One hematoxylin and eosin and one Masson’s trichrome-stained virtual slide from each case were blindly reviewed with regard to 12 histological parameters by 13 pathologists in a gastrointestinal study group of the Korean Society of Pathologists. After the first review, we analyzed the causes of disagreement and defined detailed morphological criteria. The glass slides from each case were reviewed a second time after a consensus meeting. The degree of interobserver agreement was determined by multi-rater kappa statistics.
Results
Kappa values of the first review ranged from 0.0091–0.7618. Acidophilic bodies (k = 0.7618) and portal inflammation (k = 0.5914) showed high levels of agreement, whereas microgranuloma (k = 0.0984) and microvesicular fatty change (k = 0.0091) showed low levels of agreement. After the second review, the kappa values of the four major pathological features increased from 0.3830 to 0.5638 for steatosis grade, from 0.1398 to 0.2815 for lobular inflammation, from 0.1923 to 0.3362 for ballooning degeneration, and from 0.3303 to 0.4664 for fibrosis.
Conclusions
More detailed histomorphological criteria must be defined for correct diagnosis and high interobserver agreement of NAFLD.

Citations

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Non-alcoholic fatty liver disease: the pathologist’s perspective
Wei-Qiang Leow, Anthony Wing-Hung Chan, Paulo Giovanni L. Mendoza, Regina Lo, Kihan Yap, Haeryoung Kim
Clinical and Molecular Hepatology.2023; 29(Suppl): S302. CrossRef
CT-based Hounsfield unit values reflect the degree of steatohepatitis in patients with low-grade fatty liver disease
Ha Neul Kim, Hong Jae Jeon, Hei Gwon Choi, In Sun Kwon, Woo Sun Rou, Jeong Eun Lee, Tae Hee Lee, Seok Hyun Kim, Byung Seok Lee, Kyung Sook Shin, Hyun Jung Lee, Hyuk Soo Eun
BMC Gastroenterology.2023;[Epub] CrossRef
Artificial intelligence and deep learning: New tools for histopathological diagnosis of nonalcoholic fatty liver disease/nonalcoholic steatohepatitis
Yoshihisa Takahashi, Erdenetsogt Dungubat, Hiroyuki Kusano, Toshio Fukusato
Computational and Structural Biotechnology Journal.2023; 21: 2495. CrossRef
An integrated gene-to-outcome multimodal database for metabolic dysfunction-associated steatotic liver disease
Timothy J. Kendall, Maria Jimenez-Ramos, Frances Turner, Prakash Ramachandran, Jessica Minnier, Michael D. McColgan, Masood Alam, Harriet Ellis, Donald R. Dunbar, Gabriele Kohnen, Prakash Konanahalli, Karin A. Oien, Lucia Bandiera, Filippo Menolascina, An
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Artificial intelligence scoring of liver biopsies in a phase II trial of semaglutide in nonalcoholic steatohepatitis
Vlad Ratziu, Sven Francque, Cynthia A. Behling, Vanja Cejvanovic, Helena Cortez-Pinto, Janani S. Iyer, Niels Krarup, Quang Le, Anne-Sophie Sejling, Dina Tiniakos, Stephen A. Harrison
Hepatology.2023;[Epub] CrossRef
Improved pathology reporting in NAFLD/NASH for clinical trials
Caitlin Rose Langford, Marc H Goldinger, Darren Treanor, Clare McGenity, Jonathan R Dillman, Daniela S Allende, Robert Goldin, Elizabeth M Brunt, Kurt Zatloukal, Helmut Denk, Kenneth A Fleming
Journal of Clinical Pathology.2022; 75(2): 73. CrossRef
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Stefan G. Hübscher, Sandy Feng, Annette S. H. Gouw, Hironori Haga, Hyo Jeong Kang, Deirdre A. Kelly, Mina Komuta, Andrew Lesniak, Benjamin A. Popp, Henkjan J. Verkade, Eunsil Yu, Anthony J. Demetris
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Discordant pathological diagnosis of non‐alcoholic fatty liver disease: A prospective multicenter study
Takuya Kuwashiro, Hirokazu Takahashi, Hideyuki Hyogo, Yuji Ogawa, Kento Imajo, Masato Yoneda, Takashi Nakahara, Satoshi Oeda, Kenichi Tanaka, Yuichiro Amano, Shinji Ogawa, Atsushi Kawaguchi, Shinichi Aishima, Masayoshi Kage, Kazuaki Chayama, Atsushi Nakaj
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Stergios A. Polyzos, Jannis Kountouras, Christos S. Mantzoros
Metabolism.2020; 104: 154144. CrossRef
A scoring system for the diagnosis of non-alcoholic steatohepatitis from liver biopsy
Kyoungbun Lee, Eun Sun Jung, Eunsil Yu, Yun Kyung Kang, Mee-Yon Cho, Joon Mee Kim, Woo Sung Moon, Jin Sook Jeong, Cheol Keun Park, Jae-Bok Park, Dae Young Kang, Jin Hee Sohn, So-Young Jin
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An Improved qFibrosis Algorithm for Precise Screening and Enrollment into Non-Alcoholic Steatohepatitis (NASH) Clinical Trials
Wei-Qiang Leow, Pierre Bedossa, Feng Liu, Lai Wei, Kiat-Hon Lim, Wei-Keat Wan, Yayun Ren, Jason Pik-Eu Chang, Chee-Kiat Tan, Aileen Wee, George Boon-Bee Goh
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Lulu Sun, Jon N. Marsh, Matthew K. Matlock, Ling Chen, Joseph P. Gaut, Elizabeth M. Brunt, S. Joshua Swamidass, Ta-Chiang Liu
EBioMedicine.2020; 60: 103029. CrossRef
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Juan S. Calle-Toro, Suraj D. Serai, Erum A. Hartung, David J. Goldberg, Bradley D. Bolster, Kassa Darge, Sudha A. Anupindi
Abdominal Radiology.2019; 44(3): 894. CrossRef
R2 relaxometry based MR imaging for estimation of liver iron content: A comparison between two methods
Juan S. Calle-Toro, Christian A. Barrera, Dmitry Khrichenko, Hansel J. Otero, Suraj D. Serai
Abdominal Radiology.2019; 44(9): 3058. CrossRef
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Bernard Fromenty
Liver Research.2019; 3(3-4): 157. CrossRef
Standardising the interpretation of liver biopsies in non‐alcoholic fatty liver disease clinical trials
Rish K. Pai, David E. Kleiner, John Hart, Oyedele A. Adeyi, Andrew D. Clouston, Cynthia A. Behling, Dhanpat Jain, Sanjay Kakar, Mayur Brahmania, Lawrence Burgart, Kenneth P. Batts, Mark A. Valasek, Michael S. Torbenson, Maha Guindi, Hanlin L. Wang, Veeral
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NAFLD Histology: a Critical Review and Comparison of Scoring Systems
Rish K. Pai
Current Hepatology Reports.2019; 18(4): 473. CrossRef
Hepatic sonic hedgehog protein expression measured by computer assisted morphometry significantly correlates with features of non-alcoholic steatohepatitis
Michael Estep, Rohini Mehta, Gary Bratthauer, Lakshmi Alaparthi, Fanny Monge, Simon Ali, Dinan Abdelatif, Zahra Younoszai, Maria Stepanova, Zachary D. Goodman, Zobair M. Younossi
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Validation of intimate correlation between visceral fat and hepatic steatosis: Quantitative measurement techniques using CT for area of fat and MR for hepatic steatosis
Moon Hyung Choi, Joon-Il Choi, Michael Yong Park, Sung Eun Rha, Soon Nam Oh, Seung Eun Jung, Jae Young Byun, Stephan Kannengiesser, Yohan Son
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Meng Yin, Sudhakar K. Venkatesh
Abdominal Radiology.2018; 43(7): 1546. CrossRef
Feasibility and agreement of stiffness measurements using gradient-echo and spin-echo MR elastography sequences in unselected patients undergoing liver MRI
Guilherme Moura Cunha, Kevin J Glaser, Anke Bergman, Rodrigo P Luz, Eduardo H de Figueiredo, Flavia Paiva Proença Lobo Lopes
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Second harmonic generation microscopy provides accurate automated staging of liver fibrosis in patients with non-alcoholic fatty liver disease
Pik Eu Chang, George Boon Bee Goh, Wei Qiang Leow, Liang Shen, Kiat Hon Lim, Chee Kiat Tan, Manlio Vinciguerra
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Characteristics of Cutaneous Lymphomas in Korea According to the New WHO-EORTC Classification: Report of a Nationwide Study: Jae Ho Han, Young-Hyeh Ko, Yun Kyung Kang, Wan-Seop Kim, Yoon Jung Kim, Insun Kim, Hyun-Jung Kim, Soo Kee Min, Chan-Kum Park, Chan-Sik Park, Bong-Kyung Shin, Woo Ick Yang, Young-Ha Oh, Jong Sil Lee, Juhie Lee, Tae Hui Lee, Hyekyung Lee, Ho Jung Lee, Yoon Kyung Jeon, Hee Jeong Cha, Yoo-Duk Choi, Chul Woo Kim; Korean J Pathol. 2014;48(2):126-132. Published online April 28, 2014; DOI: https://doi.org/10.4132/KoreanJPathol.2014.48.2.126

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Abstract PDF

Background

Previously, cutaneous lymphomas were classified according to either the European Organization for the Research and Treatment of Cancer (EORTC) or the World Health Organization (WHO) classification paradigms. The aim of this study was to determine the relative frequency of Korean cutaneous lymphoma according to the new WHO-EORTC classification system.

Methods

A total of 517 patients were recruited during a recent 5 year-period (2006-2010) from 21 institutes and classified according to the WHO-EORTC criteria.

Results

The patients included 298 males and 219 females, and the mean age at diagnosis was 49 years. The lesions preferentially affected the trunk area (40.2%). The most frequent subtypes in order of decreasing prevalence were mycosis fungoides (22.2%), peripheral T-cell lymphoma (17.2%), CD30+ T-cell lymphoproliferative disorder (13.7%), and extranodal natural killer/T (NK/T) cell lymphoma, nasal type (12.0%). Diffuse large B-cell lymphoma accounted for 11.2% of cases, half of which were secondary cutaneous involvement; other types of B-cell lymphoma accounted for less than 1% of cases.

Conclusions

In comparison with data from Western countries, this study revealed relatively lower rates of mycosis fungoides and B-cell lymphoma in Korean patients, as well as higher rates of subcutaneous panniculitis-like T-cell lymphoma and NK/T cell lymphoma.

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Proposal for a Standardized Pathology Report of Gastroenteropancreatic Neuroendocrine Tumors: Prognostic Significance of Pathological Parameters: Mee-Yon Cho, Jin Hee Sohn, So Young Jin, Hyunki Kim, Eun Sun Jung, Mi-Jung Kim, Kyoung-Mee Kim, Woo Ho Kim, Joon Mee Kim, Yun Kyung Kang, Joon Hyuk Choi, Dae Young Kang, Youn Wha Kim, Eun Hee Choi; Korean J Pathol. 2013;47(3):227-237. Published online June 25, 2013; DOI: https://doi.org/10.4132/KoreanJPathol.2013.47.3.227

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Abstract PDF

Background

There is confusion in the diagnosis and biological behaviors of gastroenteropancreatic neuroendocrine tumors (GEP-NETs), because of independently proposed nomenclatures and classifications. A standardized form of pathology report is required for the proper management of patients.

Methods

We discussed the proper pathological evaluation of GEP-NET at the consensus conference of the subcommittee meeting for the Gastrointestinal Pathology Study Group of the Korean Society of Pathologists. We then verified the prognostic significance of pathological parameters from our previous nationwide collection of pathological data from 28 hospitals in Korea to determine the essential data set for a pathology report.

Results

Histological classification, grading (mitosis and/or Ki-67 labeling index), T staging (extent, size), lymph node metastasis, and lymphovascular and perineural invasion were significant prognostic factors and essential for the pathology report of GEP-NET, while immunostaining such as synaptophysin and chromogranin may be optional. Furthermore, the staging system, either that of the 2010 American Joint Cancer Committee (AJCC) or the European Neuroendocrine Tumor Society (ENETS), should be specified, especially for pancreatic neuroendocrine neoplasms.

Conclusions

A standardized pathology report is crucial for the proper management and prediction of prognosis of patients with GEP-NET.

Citations

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Analysis of Prognostic Risk Factors of Endoscopic Submucosal Dissection (ESD) and Curative Resection of Gastrointestinal Neuroendocrine Neoplasms
Yuan Si, ChaoKang Huang, JingBin Yuan, XianHui Zhang, QingQiang He, ZhiJin Lin, Ling He, ZhongXin Liu, Yuvaraja Teekaraman
Contrast Media & Molecular Imaging.2022; 2022: 1. CrossRef
Standardization of the pathologic diagnosis of appendiceal mucinous neoplasms
Dong-Wook Kang, Baek-hui Kim, Joon Mee Kim, Jihun Kim, Hee Jin Chang, Mee Soo Chang, Jin-Hee Sohn, Mee-Yon Cho, So-Young Jin, Hee Kyung Chang, Hye Seung Han, Jung Yeon Kim, Hee Sung Kim, Do Youn Park, Ha Young Park, So Jeong Lee, Wonae Lee, Hye Seung Lee,
Journal of Pathology and Translational Medicine.2021; 55(4): 247. CrossRef
Preoperative diagnosis of well‐differentiated neuroendocrine tumor in common hepatic duct by brush cytology: A case report
Jiwoon Choi, Kyong Joo Lee, Sung Hoon Kim, Mee‐Yon Cho
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Primary renal well-differentiated neuroendocrine tumors: report of six cases with an emphasis on the Ki-67 index and mitosis
Bohyun Kim, Han-Seong Kim, Kyung Chul Moon
Diagnostic Pathology.2019;[Epub] CrossRef
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Tiffany Y. Chen, Annie O. Morrison, Joe Susa, Clay J. Cockerell
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Prognostic Validity of the American Joint Committee on Cancer and the European Neuroendocrine Tumors Staging Classifications for Pancreatic Neuroendocrine Tumors
Jae Hee Cho, Ji Kon Ryu, Si Young Song, Jin-Hyeok Hwang, Dong Ki Lee, Sang Myung Woo, Young-Eun Joo, Seok Jeong, Seung-Ok Lee, Byung Kyu Park, Young Koog Cheon, Jimin Han, Tae Nyeun Kim, Jun Kyu Lee, Sung-Hoon Moon, Hyunjin Kim, Eun Taek Park, Jae Chul Hw
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Pancreatic neuroendocrine tumors: Correlation between the contrast-enhanced computed tomography features and the pathological tumor grade
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Early Colorectal Epithelial Neoplasm in Korea: A Multicenter Survey of Pathologic Diagnosis: Yun Kyung Kang, So-Young Jin, Mee Soo Chang, Jung Yeon Kim, Gyeong Hoon Kang, Hye Seung Lee, Jin Hee Sohn, Ho Sung Park, Kye Won Kwon, Mi Jin Gu, Young Hee Maeng, Jong Eun Joo, Haeng Ji Kang, Hee Kyung Kim, Kee-Taek Jang, Mi Ja Lee, Hee Kyung Chang, Joon Mee Kim, Hye Seung Han, Won Ae Lee, Yoon Jung Choi, Dong Wook Kang, Sunhoo Park, Jae Hyuk Lee, Mee-Yon Cho; Korean J Pathol. 2013;47(3):245-251. Published online June 25, 2013; DOI: https://doi.org/10.4132/KoreanJPathol.2013.47.3.245

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Abstract PDF

Background

The incidence of early colorectal epithelial neoplasm (ECEN) is increasing, and its pathologic diagnosis is important for patient care. We investigated the incidence of ECEN and the current status of its pathologic diagnosis.

Methods

We collected datasheets from 25 institutes in Korea for the incidence of colorectal adenoma with high grade dysplasia (HGD) and low grade dysplasia in years 2005, 2007, and 2009; and early colorectal carcinoma in the year 2009. We also surveyed the diagnostic terminology of ECEN currently used by the participating pathologists.

Results

The average percentage of diagnoses of adenoma HGD was 7.0%, 5.0%, and 3.4% in years 2005, 2007, and 2009, respectively. The range of incidence rates of adenoma HGD across the participating institutes has gradually narrowed over the years 2005 to 2009. The incidence rate of early colorectal carcinoma in the year 2009 was 21.2%. The participants did not share a single criterion or terminology for the diagnosis of adenoma HGD. The majority accepted the diagnostic terms that distinguished noninvasive, mucosal confined, and submucosal invasive carcinoma.

Conclusions

Further research requirements suggested are a diagnostic consensus for the histopathologic diagnosis of ECEN; and standardization of diagnostic terminology critical for determining the disease code.

Citations

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Diminutive and Small Colorectal Polyps: The Pathologist's Perspective
Yun Kyung Kang
Clinical Endoscopy.2014; 47(5): 404. CrossRef

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 J Pathol. 2012;46(5):443-453. Published online October 25, 2012; DOI: https://doi.org/10.4132/KoreanJPathol.2012.46.5.443

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Abstract PDF

Background

Cancer registries play a fundamental role in cancer control and multicenter collaborative research. Recently, the need for reassessment of cancer registry criteria has arisen due to the newly released 2010 World Health Organization (WHO) classification. Accordingly, development of new coding guidelines for cancer is necessary to improve the quality of cancer registries, as well as to prevent conflicts that may arise when seeking medical insurance compensation.

Methods

With funding from the Management Center for Health Promotion, 35 members of the Gastrointestinal Pathology Study Group and the Cancer Registration Committee of the Korean Society of Pathologists (KSP) participated in a second workshop for gastrointestinal tumor registration in Korea.

Results

The topics of gastric epithelial tumor, colonic intramucosal carcinoma, neuroendocrine tumor (NET), gastrointestinal stromal tumor (GIST) and appendiceal mucinous tumor were discussed for new coding guidelines. A survey was then conducted among 208 members of the KSP for a consensus of the guidelines proposed in the workshop.

Conclusions

Although a few issues were set aside for further discussion, such as coding for non-gastric GIST and some types of NET, the members agreed upon most of the proposed guidelines. Therefore, we suggest using the newly revised International Classification of Diseases for Oncology, 3rd edition (ICD-O-3) coding guidelines for registering gastrointestinal tumors in Korea.

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