【摘要】 目的 探讨原发性小肠肿瘤的临床特点及诊断方法。 方法 回顾性分析106例原发性小肠肿瘤的临床资料、病理特征及术前诊断方法。 结果 小肠肿瘤多位于十二指肠，占40.6%(43/106)。良性肿瘤以平滑肌瘤为主，位于回肠、空肠，恶性肿瘤以腺癌最常见，其次为恶性淋巴瘤、平滑肌肉瘤。首选的检查方法为X线钡餐，尤其是低张小肠灌肠造影，内镜检查可提高十二指肠肿瘤的诊断率。 结论 十二指肠腺癌是最常见的原发性小肠肿瘤，其次为恶性淋巴瘤、平滑肌瘤及平滑肌肉瘤。低张小肠灌肠造影是诊断和定位最为有效的方法。

    【关键词】 小肠肿瘤;腺癌;诊断

    【Abstract】 Objective To explore the clinical characteristics and diagnosis of primary small intestinal tumor(PSIP).Methods Retospective analysis of the clinical and pathological date of the106PSIT cases was made.Re-sults Duodenum was the most common site for PSIT(40.6%).Leiomyomas were most common.Benign tumors which were most likely found in ileum and jejunum.Adenocarcinoma was the most frequently seen malignant PSIT fol-lowed by lymphoma and leiomyosacroma.The chief method of diagnosis is barium meal X ray examination especially with the hypotonic contrast X ray examination.Endoscopy can increase the diagnostic rate.Conclusion Duodenal adenocarcinoma is most common PSIT followed by malignant lymphoma ......