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Small Colonic Cancer Invading the Muscularis Propria, Report of a Case Shozo Okamura 1 , Toshio Asai 1 , Shinji Ohashi 1 1Department of Internal Medicine, Toyohashi City Hospital Keyword: 大腸pm癌 , 小さな大腸進行癌 pp.707-711
Published Date 1992/6/25
DOI https://doi.org/10.11477/mf.1403106894
  • Abstract
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 A 58-year-old man visited our hospital with a chief complaint of increased bowel movement. Laboratory studies showed normal except for positive immunochemical reaction of fecal occult blood. Barium enema x-ray and colonoscopic examinations revealed a flat elevated lesion in the transverse colon. This lesion was oval, irregular shaped, and slightly depressed in the center. Colonoscopic examination showed that the mucosa of flat elevated area looked normal.

 The operation was performed on November 21, 1990. The resected specimen disclosed the flat elevated lesion with shallow central depression was 16×12 mm in size. Histological examination showed well differentiated tubular adenocarcinoma with muconodular component which was predominant in the deep submucosal layer. Cancer cells invaded extensively into the superficial muscularis propria. No metastatic lesion was noted on the resected lymph nodes.

 This case is considered to be valuable to understand the natural course of a small flat elevated cancer which seemed to invade the muscularis propria.


Copyright © 1992, 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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