原发性十二指肠良性肿瘤韩庆，高寰，刘效恭原发性十二指肠良性肿瘤较少见，且缺乏典型临床表现，易延误诊治。本文复习了近年来的有关文献，综述报告于下。１．发病与病理：小肠原发性肿瘤较少见，约占整个消化道肿瘤的１～５％［１］，而十二指肠原发肿瘤占小肠肿瘤的９... Primary duodenal benign tumors Han Qing, Gao Wei, Liu Xiaozhuo Primary duodenal benign tumors are rare, and lack typical clinical manifestations, and are prone to delay in diagnosis and treatment. This article reviewed the relevant literature in recent years and summarized the report below. 1. Incidence and pathology: primary tumors of the small intestine are rare, accounting for 1 to 5% of the total gastrointestinal cancer [1], and the primary tumor of the duodenum accounts for 9 of the small intestine tumors.