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Japanese

Usefulness of Magnifying Colonoscopy for the Diagnosis of Focal Recurrence in the Colorectal Laterally Spreading Tumor Satoru Tamura 1 , Yoshifumi Higasidani 1 , Tomoko Onishi 1 , Yoshinori Kuratani 1 , Hiroshi Mizuta 1 , Saburo Onishi 1 1Department of Endoscopy, Kochi Medical School, Nankoku, Japan Keyword: laterally spreading tumor , LST , pit pattern , 局所再発 , isolated crypt , endoscopic mucosal resection , EMR pp.1783-1792
Published Date 2006/12/25
DOI https://doi.org/10.11477/mf.1403100818
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 The recognition of a new concept of colonic lesions and the advent of the video endoscope have shown that the composition of a colon tumor is not only a “polyp” type but also an endophytic growth tumor. These include depressed type lesions, and laterally spreading tumors (LST). The difficulty in endoscopic diagnosis of these two types ― depressed type and LST ― depends mainly on their gross configuration, and they are usually detected endoscopically by a faint redness or roughness on their surface. Histopathologically, the majority of LSTs were adenomas or intramucosal carcinomas, even though the tumor sizes were larger than 20 mm in diameter. Previous reports indicate that almost all LSTs are treatable by endoscopic mucosal resection (EMR), and also that magnifying endoscopic observation is necessary to prevent the recurrence of resected tumors.


Copyright © 2006, 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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