抗体内存在两个或多个独立的恶性肿瘤称多发性原发性恶性肿瘤,内称复合恶性肿瘤,我院从1971～1985年间发现4例大肠复合癌,介绍如下: 例一,女,55岁,便频,里急后重,粘液血便一月余,继而排便困难,便柱变细。肝脾(一),腹部肿块(一),肛门指诊,直肠后壁2.5cm处肿物,边缘隆起 There are two or more independent malignant tumors in the antibody called multiple primary malignant tumors, which are called compound malignant tumors. Four cases of large intestine complex cancer were discovered in our hospital from 1971 to 1985. They are described as follows: Case 1, female, 55 Years old, then frequent, tenesmus, mucous bloody stools more than a month, followed by defecation difficulties, thin stools. Liver and spleen (1), Abdominal mass (1), Anal examination, Tumor at 2.5 cm posterior rectum, Edge uplift