随着临床诊疗技术的发展、人类寿命的延长以及环境污染的逐渐加重，多重癌的发病率逐年增加，且极易漏诊或误诊。乳腺癌发病率较高，而十二指肠壶腹部癌及小肠癌发病率低，三种恶性肿瘤异时性的出现于同一患者并导致术后输入袢梗阻更属罕见。现将中国医科大学附属盛京医院肿瘤内科收治的1例由小肠原发癌造成多重癌患者术后输入袢肠梗阻的病例进行报道。

With the development of clinical diagnosis and treatment technology, the prolongation of human life and the gradual aggravation of environmental pollution, the incidence of multiple carcinomas increase year by year, and it′s highly likely to be missed or misdiagnosed. Breast cancer incidence is high, while the incidence of duodenal ampulla carcinoma and small intestine carcinoma is low, it is more rare for three malignant tumors heterochronously to appear in the same patient and lead to postoperative input loop intestinal obstruction. A case of multiple intestinal obstruction caused by primary small intestinal cancer was reported in the Department of Oncology, Shengjing Hospital Affiliated to China Medical University.