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Clinicopathological and Imaging Features of Gastric Carcinoma Resembling Submucosal Tumor Toyohiko Yuki 1 , Tadasu Sato 1 , Kazuhiko Ishida 1 , Naotaka Fujita 1 1Department of Gastroenterology, Sendai City Medical Center Keyword: 粘膜下腫瘍様胃癌 , 内視鏡診断 , X線診断 , 超音波内視鏡診断 , 生検診断 pp.1527-1536
Published Date 2003/10/25
DOI https://doi.org/10.11477/mf.1403100741
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 We reviewed 11 cases of gastric carcinoma resembling submucosal tumor, paying particular attention to clinicopathological and imaging features.

 1)The proportion of such cases was 1.27% of 866 cases of gastric cancer who underwent gastrectomy or endoscopic mucosal resection.

 2)Clinicopathologically, histological type varied. There were 6 cases of tubular adenocarcinoma,4 cases of poorly differentiated adenocarcinoma, and one case of mucinous adenocarcinoma. Lymphatic invasion, venous invasion, and lymph-node metastasis occurred with a high frequency in such cases.

 3)Endoscopically, the location of depression, redness, and coating deviated from the top of the tumor. Encroachment and irregularity of transparent capillaries were an important indication of malignancy.

 4)Radiologically, irregular shaped depression deviating from the top of the tumor was an important indication of malignancy.

 5)In endoscopic ultrasonography (EUS) findings, internal echo pattern was irregular, and the margin of the tumor was unclear. EUS was useful for differential diagnosis between submucosal tumor and carcinoma resembling submucosal tumor of the stomach.

 6)In the definite diagnosis by biopsy specimen, additional procedures, such as endoscopic mucosal resection, boring biopsy, and EUS guided fine-needle aspiration biopsy, were very useful.


Copyright © 2003, 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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