Postoperative screening of patients with carcinoma of the colon

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Abstract
A prospective evaluation of 149 patients with Dukes'' B2 or C colorectal carcinoma, including periodic history, physical examination, chest radiograph, liver function tests, complete blood count, carcinoembryonic antigen (CEA) radioimmunoassay, Ba enema and endoscopic studies, has been underway since 1976. Thirty-four patients have had recurrence. The history and CEA are apparently the most sensitive noninvasive methods with which to detect recurrent tumors but are unlikely to indicate recurrence at a therapeutically advantageous stage.