Small pedunculated tubular adenoma of the colon with carcinoma restricted to the head, invasion of lymphatics and widespread metastases. Case report and review of the literature.

The case of a 66 year old woman who died of metastatic adenocarcinoma is reported. The origin of the tumor was found at autopsy to be a focal carcinoma in the head of a small pedunculated tubular adenoma at the recto-sigmoidal junction. Nine similar case reports from the literature are briefly presented.