A CASE OF EARLY COLON CANCER, SHOWING DRASTIC MORPHOLOGICAL CHANGE FROM TYPE-IP IN THE SHORT TERM

Abstract

A 56-year-old man underwent TCS, which revealed a Type-Ip lesion, 15 mm in size, in the ascending colon. Although immediate endoscopic resection was recommended, the treatment was postponed it to 10 months later due to patients will. At the time of treatment, the morphology of the lesion changed significantly to an Is-type. Magnification endoscopy showed a Vn-type pit pattern in the surface of the lesion, suggesting SM massive invasion. En bloc resection was performed using the endoscopic mucosal resection technique. Histological examination of the resected specimen verified tubular adenocarcinoma (tub 1), pSM (3,800μm).