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Early Gastric Cancer, Type 0 IIb Ken Kominato 1 , Tadahiko Fuchigami 1 , Keisuke Kawasaki 1 , Hiroyuki Kobayashi 1 , Yuji Sakai 1 , Kouichi Kurahara 1 , Hideki Ishibashi 1 , Mao Funata 1 , Yoshiaki Aomi 1 , Yuka Matsumoto 1 , Yumi Ooshiro 2 1Institute of Gastroenterology, Matsuyama Red Cross Hospital, Matsuyama, Japan 2Institute of Pathology, Matsuyama Red Cross Hospital, Matsuyama, Japan Keyword: 早期胃癌 , 肉眼型 , 0 IIb型 pp.533-540
Published Date 2009/4/24
DOI https://doi.org/10.11477/mf.1403101626
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 Early gastric cancer, type 0 IIb is regarded as a carcinoma difficult to diagnose clinically due to the ambiguity of the definition and its rarity. In the Japanese classification of gastric carcinoma, type 0 IIb(superficial flat type)is defined as a lesion devoid of any elevation or depression exceeding the extent of irregularity as recognized in the normal gastric mucosa, and the gross type is to be described as a comprehensive finding based on clinical, surgical, and pathological findings.

 However, owing to the lack of a description in the classification about which findings should be given most consideration, different definitions have been proposed respectively from each standpoint, and have caused confusion regarding the definition of type 0 IIb. In roentogenography, delineation of the lesion depends on the quality of the double contrast study. Both of the cases presented in our article were picked up by conventional endoscopy, and dye spraying endoscopy and magnified endoscopy with narrow band imaging(NBI)clearly outlined the lesion. From the clinical standpoint, taking into account the increase of endoscopic resection and the effect of matching procedures to gross appearance, we consider that the confusion regarding the definition would be settled by agreement that the gross classification of type 0 IIb should be judged by its endoscopic findings.


Copyright © 2009, 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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