重复瘤是指在同一患者的单个或多个器官组织同时或先后发生两种以上的原发性肿瘤。本例是肠道内发生的两种不同的原发性肿瘤,报告如下。患者男,55岁。大便带血2年,于1984年12月21日入院。2年来大便带血,血量少,1年来排便频繁,10余次/日,便量少,伴里急后重,无脓 Repeated tumors refer to the occurrence of two or more primary tumors simultaneously or one after the other in the same patient’s single or multiple organ tissues. This example is two different primary tumors that occur in the intestine and are reported below. Male patient, 55 years old. The stool was bloody for 2 years and was admitted on December 21, 1984. 2 years of stool blood, blood volume, 1 year bowel movements frequent, more than 10 times / day, then less, with tenesmus, no pus