原发性十二指肠癌患病率低,由于早期症状无特异性,极易误诊,现对我院1982年4月至1997年5月发现的30例原发性十二指肠癌进行临床诊断分析。1 临床资料1.1 一般资料 30例患者中男21例,女9例,年龄31～70岁,平均55岁,其中40岁以上24例(80％);平均病程12.9个月(2.2个月至3.1年)。30例中腺癌28例(93.3％),类癌1例,鳞状上皮细胞癌1例。病变位于球部5例,降部19例,水平段6例。 The prevalence of primary duodenal cancer is low. Due to its non-specific early symptoms, it is easily misdiagnosed. Now 30 cases of primary duodenal cancer have been diagnosed in our hospital from April 1982 to May 1997. Clinical diagnostic analysis. 1 clinical data 1.1 General Information 30 patients were 21 males and 9 females, aged 31 to 70 years, an average of 55 years of age, including 24 years of age over 24 (80%); average disease duration of 12.9 months (2.2 months to 3.1 year). Among 30 cases of adenocarcinoma, 28 (93.3%) had adenocarcinoma, 1 had carcinoid, and 1 had squamous cell carcinoma. Lesions were located in 5 cases in the bulb, 19 in the descending area, and 6 in the horizontal area.