Abstract
An 80-year-old woman with loss of appetite was admitted to the hospital for evaluation and treatment of a tumor in the colon, which was found by barium enema examination. By colonofiberscopy, three flat elevated noudle-aggregating lesions were detected in the ascending colon, hepatic flexure of the transverse colon and descending colon. Further a type 2 tumor was detected in the hepatic flexure. Under the diagnosis of carcinoma in two lesions confirmed by histological examination, and taking a high incidence of malignant transformation of the adenoma into consideration, a right hemicolectomy and a partial resection of the descending colon were performed on May 15, 1997. In all of the noudle-aggregating lesions, well differentiated adenocarcinomas, limiting within the mucosa were confirmed by histological examination of the resectd spacimen. And these lesions were considered carcinoma in adenoma by the histological formation. The type 2 tumor was also confirmed as moderately differentiated adenocarcinoma, invading the proper muscle layer.
