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Endoscopic Mucosal Resection of Early Gastric Carcinoma: The Possibility of Extending Vertical Invasion - The Criterion for Determining Endoscopic Therapeutical Limit Junko Fujisaki 1 , Masahiro Ikegami 2 , Yayoi Arai 1 , Makiko Ichinose 1 , Yoshiomi Masui 1 1Department of Endoscopy, The Jikei University School of Medicine 2Department of Pathology, The Jikei University School of Medicine Keyword: 早期胃癌 , sm胃癌 , 粘膜切除術 pp.1579-1587
Published Date 1998/11/25
DOI https://doi.org/10.11477/mf.1403103863

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  • Abstract
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 We examined the relationship between submucosal infiltration, lymphnode metastasis and vascular invasion in resected carcinoma specimens, especially well differentiated adenocarcinoma, without ulcer or ulcer scar in the lesions. There is a possibility that the indication for EMR can be extended to 500μm of submucosal invasion, especially if its size is 20 mm or smaller, the mucosal and submucosal histological type is well differentiated adenocarcinoma, and if there is no ulcer or scar in the lesion. Such lesions as these have neither lymph node metastasis nor lymphatic or vascular permeation. Therefore, we examined the difference between operated specimens and EMR specimens to guage sampling methods. Because operated specimens were made of sections 5 mm in area, while EMR specimens were made of sections 2 mm in area, we made deeply cut sections as operated specimens. Sampling methods showed that there is a margin for error of, on the average, 73μm, in the determination of the depth of invasion of early gastric carcinoma.


Copyright © 1998, 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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