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下腔静脉后输尿管是一种罕见的先天性疾病。正常胚胎期肾静脉以下的下腔静脉由右侧上主静脉形成，右侧下主静脉在发育过程中应消失，但其如不消失且代替了上主静脉，则右侧输尿管就有一段位于其后而形成此病。1分类及症状Bateson和Atkinson根据X线表现将腔静脉后输尿管分为两类
Inferior vena cava ureter is a rare congenital disease. In the normal embryo, the inferior vena cava below the renal vein is formed by the right superior vena cava and the right inferior vena cava should disappear during development, but if it does not disappear and replaces the superior vena cava, the right ureter has a Later, the formation of the disease. 1 classification and symptoms Bateson and Atkinson according to the performance of the vena cava behind the ureter is divided into two categories