原发性十二指肠恶性肿瘤甚少见,据报道其发病率占胃肠道恶性肿瘤0.39％,占小肠恶性肿瘤8.83％作者自1982年～1993年10月收治8例,均经手术和病理检查确诊,现将其诊断及治疗体会报道如下。 临床资料 一般资料:本组8例,男6例,女2例,年龄40～62岁,均为中老年患者,病程2周～2月不等。病理诊断:原发性十二指肠腺癌4例,粘液腺癌、管状腺癌、乳头状腺癌、平滑肌肉瘤各1例。 Primary duodenal malignancies are rare and reportedly account for 0.39% of gastrointestinal malignancies and 8.83% of malignancies of the small intestine. The authors have treated 8 patients from 1982 to October 1993 and have undergone surgery and The pathological examination confirmed the diagnosis and treatment experience is reported below. Clinical data General information: 8 patients in this group, 6 males and 2 females, aged 40 to 62 years old, are middle-aged and elderly patients, ranging from 2 weeks to 2 months. Pathological diagnosis: 4 cases of primary duodenal adenocarcinoma, 1 case of mucinous adenocarcinoma, tubular adenocarcinoma, papillary adenocarcinoma, and leiomyosarcoma.