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Endoscopic Diagnosis of Colonic Serrated Lesion: Conventional Endoscopic Findings Shin Hasegawa 1,2 , Osamu Tsuruta 1,2 , Hiroshi Kawano 1,2 , Keiko Arita 1,2 , Yasuhiko Maeyama 1,2 , Tetsuhiro Noda 1,2 , Shuichiro Nagata 1,2 , Keiichi Mitsuyama 1,2 , Michio Sata 1,2 1Division of Gastroenterology, Department of Medicine, Kurume University School of Medicine, Kurume, Japan 2Department of Endoscopy, Kurume University School of Medicine, Kurume, Japan Keyword: 大腸鋸歯状病変 , 内視鏡診断 , MSI陽性大腸癌 , 鋸歯状腺癌 pp.394-404
Published Date 2011/4/25
DOI https://doi.org/10.11477/mf.1403102176
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 Today, the histopathology of colonic serrated lesions is generally classified grossly into three categories : HP(hyperplastic polyp), SSA/P(sessile serrated adenoma/polyp), and TSA(traditional serrated adenoma). As SSA/P has been recognized as antecedent of MSI-positive carcinoma of the right colon, endoscopic determination of colonic serrated lesions has a significant clinical role. Our study suggested that the three lesions can be differentiated by observation taking into account localization of the lesion, size, and macroscopic findings by conventional endoscopy. SSA/P was detected more frequently in the right colon than HP or TSA. Both SSA/P and TSA were also more than 10mm in diameter, which was significantly larger than HP. In addition, TSA was showed a significantly greater incidence of pine-cone like structure and double elevation than HP or SSA/P.


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電子版ISSN 1882-1219 印刷版ISSN 0536-2180 医学書院

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