腔静脉后输尿管是少见的先天性疾病 ,我科 1991年至 2 0 0 1年收治 4例 ,为了增进对本病的认识 ,现报告如下。1　临床资料本组 4例 ,均男性 ,年龄 2 7～ 4 1岁 ,病史 2个月～8个月 ,症状为 4例右腰闷痛或胀痛 ,1例伴右肾、右输尿管上段结石。Ｂ超 4例均显示右肾积液及右输尿管 Vena cava behind ureter is a rare congenital disease, our department from 1991 to 2001, 4 cases were treated, in order to promote awareness of the disease, are as follows. 1 Clinical data The group of 4 patients, both men, aged 27 ~ 41 years old, history of 2 months to 8 months, the symptoms were 4 cases of right lower quadricepsy or pain, 1 case with the right kidney, upper right ureteral stones . B-4 cases showed right kidney effusion and right ureter