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Diagnosis of Invasion Depth of Early Gastric Cancer by Normal Endoscope Noriko Matsuura 1 , Hiroyasu Iishi 1 , Noriya Uedo 1 , Kenta Hamada 1 , Yasushi Yamazaki 1 , Kenji Aoi 1 , Takashi Kanesaka 1 , Takeshi Yamashina 1 , Sachiko Yamamoto 1 , Tomofumi Akasaka 1 , Noboru Hanaoka 1 , Yoji Takeuchi 1 , Koji Higashino 1 , Ryu Ishihara 1 , Yasuhiko Tomita 2 1Department of Gastrointestinal Oncology, Osaka Medical Center for Cancer and Cardiovascular Diseases, Osaka, Japan 2Department of Pathology, Osaka Medical Center for Cancer and Cardiovascular Diseases, Osaka, Japan Keyword: 早期胃癌 , 通常内視鏡 , 色素内視鏡 , 深達度診断 pp.603-615
Published Date 2015/5/24
DOI https://doi.org/10.11477/mf.1403200287
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 Determination of the depth of gastric cancer invasion using contrast-enhanced endoscopy(indigo carmine dye)depends on the observation of macroscopic appearance, size, surface appearance, appearance of surrounding mucosa, and thickness. Changing the air during endoscopic observation allows easier determination of the depth of tumor invasion. Size is an important factor for determining the depth of tumor in elevated lesions. Elevated(Type 0-I)tumors, 20mm or smaller in size, are most likely intramucosal cancers. Superficial elevated(Type 0-IIa)cancers are similar to intramucosal cancers. However, when Type 0-IIa cancers have irregular nodules, submucosal tumor-like marginal elevation, central depression or ulceration, there is the possibility of submucosal invasion. In superficial depressed(Type 0-IIc)cancers, the characteristic findings of submucosal cancer comprise deep depressions, central nodules in the depressions, and submucosal tumor-like elevations. For excavated or scarred[Type 0-III or 0-IIc, UL(+)] cancers with fold convergence, clubbing or fusion of the folds are characteristic findings of submucosal invasion.


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

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