在全部消化道中,虽然75—80%的长度为小肠(约22呎),但其原发肿瘤则远比其他部位为少。根据一般文献报告,小肠肿瘤之发病率占全部消化道肿瘤之2—6%左右。天津医学院附属医院外科由1947年至1963年5月,16年中共收治原发性小肠肿瘤49例,转移瘤、小肠系膜之原发性肿瘤及瓦特氏壶腹周围之肿瘤均未包括在内,全部病例均经手术或病理检查证实。将此49例分析报告如下。 In the entire digestive tract, although 75-80% of the length of the small intestine (about 22 呎), but its primary tumor is far less than other parts. According to the general literature reports, the incidence of small intestinal tumors accounts for about 2-6% of all digestive tract tumors. The Department of Surgery of the Affiliated Hospital of Tianjin Medical College from 1947 to May 1963. In the 16th year, the CCP admitted 49 cases of primary small bowel tumors. Metastatic tumors, primary mesenteric tumors, and tumors around the ampulla of Walter were not included in the study. All cases were confirmed by surgery or pathological examination. The 49 analysis reports are as follows.