类癌发生于直肠者较为少见,我院发现一例报告如下。男,34岁,住院号70549。自1977年以来,常有发作性下腹部疼痛,痛时有便意,便后腹痛可缓解,腹泻或便秘交替发生,无脓血便和里急后重。在队按“肠功能紊乱”治疗效果不佳而入院治疗。体检无异常发现。血、尿、粪常规无特殊;大便隐血阴性;乙肠镜检查,距肛门7cm 5点钟处有一息肉样肿物,大小约0.8×1.0cm,带蒂,表面光滑,周围粘膜充血。经肠镜下行直肠息肉样肿物摘除,病理学诊断 Carcinoid carcinogenesis occurred in the rectum is relatively rare, our hospital found a case report as follows. Male, 34 years old, hospital number 70549. Since 1977, there have been frequent episodes of lower abdominal pain, pain sometimes mean, then abdominal pain can be relieved, alternating diarrhea or constipation, no abscess and tenesmus. In the team by “bowel dysfunction” treatment ineffective hospitalization. No abnormal physical examination found. Blood, urine, feces conventional no special; fecal occult blood negative; colonoscopy, from the anus 7cm 5 o’clock at a polypoid mass, about 0.8 × 1.0cm, pedunculated, smooth surface, around the mucosal hyperemia. Colonoscopy retrograde polyps resection, pathological diagnosis