TWO CASES OF COLORECTAL CANCER RESEMBLING SUBMUCOSAL TUMOR

Abstract

Case I was a 64-year-old man who visited to our hospital for close examination because he was notified for positive fecal occult blood. A colorectal cancer about 1cm in size which resembled a submucosal tumor was found in the sigmoid colon. Resection revealed a moderately differentiated adenocarcinoma with sm invasion. Case II was a 76-year-old woman who presented with a sensation of incomplete defecation. A cancer resembling a submucosal tumor 3.5 cm in size was found in the rectum. Resection revealed a mucinous carcinoma with a₁ invasion. Case reports of colorectal cancer with a submucosal tumor like morphology were rare. The development and progression of such tumors was discussed.