A Case of Type IIc Cancer Having Submucosal Venous Invasion without Direct Submucosal Invasion.

概要

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We experienced IIc type de novo colon cancer which did not invade the submucosa directly, but had venous invasion in the submucosa. We found this case to be unique. The patient is a 61-year-old man who was operated on for gastric cancer six years ago and operated on for multiple colon cancers two years ago. For the purpose of following up after the operation, we examined him by " colonoscopy. The depressed lesion which was proved carcinoma by biopsy, and multiple polyps were found in the colon. The left side transverse colon and descending colon which became blind loop by the past operation were resected. By studying the resected specimen, 4×6mm IIc type cancer which did not invade the submucosa directly, but had venous invasion in the submucosa and multiple early cancers including IIb type de novo mucosal cancer were found. It seems to be the same type as the infiltration in the submucosa by the vessel invasion with gastric cancer.
日本大腸肛門病学会の論文