原发性十二指肠恶性肿瘤少见,诊断较困难,随着纤维胃镜、电子胃镜在临床的广泛应用,其对十二指肠肿瘤的诊断已不容忽视。我院1988年6月～1993年6月在胃镜检查中发现原发性十二指肠恶性肿瘤21例,现报道如下: 临床资料一、性别与年龄:男12例,女9例,患者平均年龄52.14±9.26岁(X±s)。二、主要临床表现:上腹胀痛不适、消瘦、乏力、黄疸、呕吐、黑便及间断发热。三、仪器:采用日本Dlympus公司生产的 Primary duodenal malignancy is rare and difficult to diagnose. With the wide application of fiber endoscopy and electronic gastroscopy, the diagnosis of duodenal cancer cannot be ignored. In our hospital from June 1988 to June 1993, 21 cases of primary duodenal malignancies were found by gastroscopy. The following are reported: Clinical data 1. Sex and age: 12 males and 9 females, average patient Age 52.14±9.26 (X±s). Second, the main clinical manifestations: abdominal pain, discomfort, weight loss, fatigue, jaundice, vomiting, black stools and intermittent fever.三、Instrument: Adopted by Japan Dlympus