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Endoscopic Diagnosis of the Depth of Invasion of Colorectal Carcinoma Smaller Than 10 mm in Size with Massive Submucosal Invasion Shinji Nagata 1 , Shinji Tanaka 1 1Department of Endoscopy, Hiroshima University School of Medicine Keyword: 10mm以下の大腸癌 , 深達度診断 , 通常内視鏡検査 , 拡大内視鏡検査 pp.1403-1415
Published Date 2001/10/25
DOI https://doi.org/10.11477/mf.1403103344
  • Abstract
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 We assessed endoscopic findings for diagnosis of the depth of invasion in colorectal carcinoma smaller than 10 mm in size with submucosal (sm) massive invasion. Expansiveness, irregular surface, and roughness were useful indicators of sm invasion deeper than 400μm in a polypoid type lesion. Roughness and depressed area (deep and roundish) were useful indicators of sm invasion deeper than 400μm in a superficial type lesion. Expansiveness, irregular surface, roughness, and fold convergence were useful indicators of sm invasion deeper than 1,500μm in a polypoid type lesion. A depressed area (deep and roundish) was a useful indicator of sm invasion deeper than 1,500μm in a superficial type lesion.

 There was no significant difference in the endoscopic findings of sm massive invasion in polypoid type lesions between smaller than 10 mm and larger than 11 mm in size. However, wall rigidity, irregular surface, roughness and surface destruction were useful indicators in a superficial type lesion larger than 11 mm in size.

 There was no significant difference in diagnosis of the depth of invasion between ordinary and magnifying colonoscopic findings in the lesions with the V type pit pattern smaller than 10 mm in size.


Copyright © 2001, 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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