Ulcertitive colitis is associated with an incidence of multiple adenocarcinomas of the colon and rectum. 溃疡性结肠类与结肠和直肠的多发性腺癌的发生率增高有联系。
This is familial polyposis in which the mucosal surface of the colon is essentially a carpet of small adenomatous polyps. 图示的是家族性结肠息肉病，在乙状结肠的表面可见较多的小的息肉状腺瘤。
