Abstract
A 77-year-old male was operated on for cancer of the ascending colon. A baseball-sized cancer resembling Borrman type ft was seen in the ascending colon. Moreover, a small finger tip-sized polyp was also found in the cecum. Histologically, a well-differentiated adenocarcinoma coexistent with Schistosoma eggs of the ascending colon was revealed. Cecal polyp was histologically a carcinoma in adenoma coexistent with the same eggs in the submucosal layer.
Relationship between the elevated lesions or cancer and Schistosoma eggs in this case might suggest that the existence of the eggs caused the elevated lesions (polyp and adenoma) leading to a well-differentiated adenocarcinoma.
