原发性输尿管肿瘤是泌尿系统少见的恶性肿瘤 ,约为泌尿生殖系统肿瘤的 1% ,尿路上皮肿瘤的 1 7。基层医院受条件限制 ,早期诊断有困难 ,又因输尿管壁薄、淋巴管、血管丰富 ,容易发生转移 ,5年生存率极低。现将本组 18例原发性输尿管肿瘤病人就其诊断 ,治疗体会及误诊的原因报告 Primary ureteral tumors are rare malignant tumors of the urinary system, accounting for about 1% of genitourinary tumors and 17 of urothelial tumors. Primary hospitals subject to conditions, early diagnosis is difficult, but also because of ureteral wall thin, lymphatic vessels, vascular rich, prone to metastasis, 5-year survival rate is extremely low. Now this group of 18 patients with primary ureteral tumor diagnosis, treatment and misdiagnosis of the reasons for the report