原发性十二指肠恶性肿瘤指发生于十二指肠的恶性肿瘤,不包括起源于壶腹、胆总管下段及胰头的恶性肿瘤,临床上少见。其发病在整个胃肠道恶兄琢中占0.3％,但在小肠恶性肿瘤中占8.83％～25.71％。本组收集了我院1978年至1990年8月经手术治疗,资料完整的26例,均经病理检查证实为十二指肠恶性肿瘤者,报告如下: 临床资料本组26例中男性17例,女性9例,男女之比为2: Primary duodenal malignancy refers to a malignant tumor that occurs in the duodenum. It does not include malignant tumors originating in the ampulla, lower common bile duct, and pancreatic head, and is rare in clinical practice. The incidence of this disease is 0.3% in the entire GI sibling, but it accounts for 8.83% to 25.71% in the malignant tumor of the small intestine. This group collected 26 cases of surgically treated patients in our hospital from 1978 to August 1990. All of them were confirmed by pathological examination as duodenal malignant tumors. The report is as follows: Clinical data The group included 26 males in 17 cases. 9 females, male to female ratio 2: