Primary multiple colonic carcinoma

Polypoid lesions of the colon are commonly accepted risk factors for the development of carcinomas of the colon. Fifty-two of 266 patients with one or more polypoid lesions of the colon showed a carcinoma in one of the polyps, 6 patients had a second carcinoma. Our study demonstrates the importance of preoperative investigation of the total colon in patients with carcinoma of the colon. Furthermore, the necessity of total exstirpation of each polypoid lesion is discussed.