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JPTM > Ahead-of Print

doi: https://doi.org/10.4132/jptm.2017.08.11    [Epub ahead of print]
Current Cytology Practices in Korea: A Nationwide Survey by the Korean Society for Cytopathology
Eun Ji Oh1, Chan Kwon Jung1,2, Dong-Hoon Kim3, Han Kyeom Kim4, Wan Seop Kim5, So-Young Jin6, Hye Kyoung Yoon7, The Fellowship Council and Committee of Quality Improvement of the Korean Society for Cytopathology
1Department of Hospital Pathology, College of Medicine, The Catholic University of Korea, Seoul, Korea
2Cancer Research Institute, College of Medicine, The Catholic University of Korea, Seoul, Korea
3Department of Pathology, Kangbuk Samsung Hospital, Sungkyunkwan University School of Medicine, Seoul, Korea
4Department of Pathology, Korea University Guro Hospital, Korea University College of Medicine, Seoul, Korea
5Department of Pathology, Konkuk University School of Medicine, Seoul, Korea
6Department of Pathology, Soonchunhyang University Seoul Hospital, Soonchunhyang University College of Medicine, Seoul, Korea
7Department of Pathology, Inje University Busan Paik Hospital, Inje University College of Medicine, Busan, Korea
Corresponding Author: Chan Kwon Jung ,Tel: +82-2-2258-1622, Fax: +82-2-2258-1627, Email: ckjung@catholic.ac.kr
Received: July 4, 2017;  Revised: August 7, 2017  Accepted: August 10, 2017.  Published online: September 27, 2017.
ABSTRACT
Background:
Limited data are available on the current status of cytology practices in Korea. This nationwide study presents Korean cytology statistics from 2015.
Methods:
A nationwide survey was conducted in 2016 as a part of the mandatory quality-control program by the Korean Society for Cytopathology. The questionnaire was sent to 208 medical institutions performing cytopathologic examinations in Korea. Individual institutions were asked to submit their annual cytology statistical reports and gynecologic cytology-histology correlation data for 2015.
Results:
Responses were obtained from 206 medical institutions including 83 university hospitals, 87 general hospitals, and 36 commercial laboratories. A total of 8,284,952 cytologic examinations were performed in 2015, primarily in commercial laboratories (74.9%). The most common cytology specimens were gynecologic samples (81.3%). Conventional smears and liquid-based cytology were performed in 6,190,526 (74.7%) and 2,094,426 (25.3%) cases, respectively. The overall diagnostic concordance rate between cytologic and histologic diagnoses of uterine cervical samples was 70.5%. Discordant cases were classified into three categories: category A (minimal clinical impact, 17.4%), category B (moderate clinical impact, 10.2%), and category C (major clinical impact, 1.9%). The ratio of atypical squamous cells of undetermined significance to squamous intraepithelial lesion was 1.6 in university hospitals, 2.9 in general hospitals, and 4.9 in commercial laboratories.
Conclusions:
This survey reveals the current status and trend of cytology practices in Korea. The results of this study can serve as basic data for the establishment of nationwide cytopathology policies and quality improvement guidelines in Korean medical institutions.
Key Words: Cytology; Statistics; Surveys; Quality; Accuracy