ナガヤマ　モトヒコ   NAGAYAMA MOTOHIKO   永山　元彦    所属   朝日大学  歯学部 口腔病態医療学講座 口腔病理学    朝日大学  大学院 歯学研究科    職種   教授
発表年月日	2025/05/12
発表テーマ	Oral cytology in Japan: novel diagnostic criteria and strategies
会議名	International Congress of Cytology
学会区分	国際学会
発表形式	口頭（一般）
単独共同区分	共同
国名	イタリア
開催地名	フィレンツェ
開催期間	2025/05/11～2025/05/15
発表者・共同発表者	M. Nagayama, A. Ihara, Y. Tanaka, M. Sasaki, T. Ochiai, M. Ehara, Y. Miyamoto, H. Suwa, K. Kawarada
概要	In recent years, oral squamous cell carcinoma (OSCC) and precursor lesions, including potentially malignant disorders (OPMDs), have increased in Japan. While early detection is crucial when the disease is localized, surgical biopsies at dental clinics are limited due to techniques and interventions within the body. In 2015, the Japanese Society for Clinical Cytology (JSCC) established new guidelines for oral cytology based on a modified Bethesda system. This guideline advocates liquid-based cytology (LBC) due to its ease of use, reproducibility, and fewer artifacts than conventional methods. It also highlights (1) evaluating insufficient specimens, (2) applying descriptive criteria for diagnosis, and (3) providing educational notes. The cytological criteria include Inadequate, NILM, OLSIL, OHSIL, SCC and IFN.