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Diagnosis of Endoscopic Ultrasonography for Colorectal Cancer, the Depth of Invasion of Cancers 10 mm in Diameter and Infiltrating Deeper than the Massive Mucosa Yosuke Kikuchi 1 1Department of Gastroenterology Fukuoka University Chikushi Hospital Keyword: 10mm以下sm massive以深癌 , EUS pp.1417-1426
Published Date 2001/10/25
DOI https://doi.org/10.11477/mf.1403103346
  • Abstract
  • Look Inside

 We investigated the role of endoscopic ultrasonography for colorectal cancer, evaluating its ability to diagnose the depth of invasion of cancers 10 mm in diameter and infiltrating deeper than the massive mucosa.

 1) In a total of 268 lesions, the rate of inability to provide a sufficiently detailed result was 10.1% and the rate of misdiagnosis of the depth of invasion was 16.8%. Furthermore, in 167 cases of early colorectal cancer, the rates were increased to 14.4% and 25.1% respectively.

 2) There was no statistically dominant relationship between the rate of insufficiently detailed or misdiagnostic study, and size, depth of invasion in the early stage and macroscopic shape.

 3) Three misdiagnostic cases were found in 12 cases of small (within 10 mm) sized colorectal cancers which had infiltrated deeper than the massive submucosal layer. However, two of these 12 cases had been diagnosed accurately by endoscopic ultrasonography, but could not be diagnosed by ordinary endoscopic study. As a result, proper clinical treatment was performed except in one case. Considering these results, we conclude that, for the accurate detection of the depth of invasion, it is necessary to make a synthetic assessment using a combination of endoscopic ultrasonography and ordinary endoscopy for diagnosis of colorectal cancer, even for those lesions within 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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