Japanese

Differential Diagnosis of Gastric Protruded Lesions by Conventional Endoscopy with White Light Taiji Akamatsu 1 , Kazuhisa Shimodaira 2 , Masahiro Matsuzawa 2 , Yoshimi Cho 2 , Miho Sakaguchi 2 , Tetsuro Ichikawa 3 , Shuichi Yokosawa 4 , Tomoaki Suga 4 , Hideharu Miyabayashi 5 1Endoscopy Center, Suzaka Hospital, Nagano Prefectural Hospital Organization, Suzaka, Japan 2Internal Medicine, Suzaka Hospital, Nagano Prefectural Hospital Organization, Suzaka, Japan 3Clinical Laboratories, Suzaka Hospital, Nagano Prefectural Hospital Organization, Suzaka, Japan 4Internal Medicine, Gastroenterology, Shinshu University School of Medicine, Matsumoto, Japan 5Internal Medicine, Matsumoto Hospital, Matsumoto Medical Center, National Hospital Organization, Matsumoto, Japan Keyword: , 隆起性病変 , 鑑別診断 , 内視鏡 , 白色光 pp.1200-1208
Published Date 2012/7/25
DOI https://doi.org/10.11477/mf.1403113543
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 We can perform theoretical differential diagnosis for gastric protruded lesions according to a diagnostic algorithm based on important endoscopic findings. When we encounter gastric protruded lesions, we should distinguish between epithelial lesions and non epithelial ones first by the endoscopic findings of “surface pattern”and “situation of standing up”. If we judge the lesions as epithelial lesions, we should distinguish between tumorous lesions and non tumorous ones by the endoscopic findings of “shape”and “color”. Furthermore, if we judge the lesions as epithelial tumorous lesions, we should distinguish between cancer and adenoma by the endoscopic findings of “size”and “color”. Hyperplastic polyps, fundic polyps, and gastrointestinal polyposis-related gastric lesions are affiliated with epithelial non tumorous lesions, however it is relatively easy to distinguish them. On the other hand, if we judge the lesions as non epithelial lesions, we should distinguish between benign lesions and malignant ones from the endoscopic findings of “size”, “shape”, and “existence of ulceration on the top of the lesions”. However, we should have a knowledge of types of gastric cancer that look like non epithelial lesions.


Copyright © 2012, Igaku-Shoin Ltd. All rights reserved.

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

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