A 59-year-old man was seen at the hospital because his stool was positive for occult blood at a health examination. Colonofiberscopy revealed multiple inflammatory polyps in the right-sided colon, and early colonic cancer associated with an inflammatory polyp of the cecum. Right hemicolectomy was performed. Histopathological examination of the resected specimen revealed inflammatory polyps of unknown origin. No clear examination about the origin of the inflammatory polyps was gained histologically, but intestinal tuberculosis was strongly suspected from his clinical course, endoscopic findings and positive response to PPD skin test. From a morphological standpoint that cecal carcinoma had extended on the lateral wall of the inflammatory polyp, the cecal carcinoma was thought to have arisen in the inflammatory polyp.