海绵肾是少见的先天性疾病 ,特点是肾锥体乳头管和集合管的棱形或囊状扩张 ,容易继发尿路结石 ,造成梗阻和感染 ,严重时可导致肾功能损害。本病容易误诊 ,国内报道较少 ,本院(北医三院 ) 1976年～ 1995年共收治 7例 ,现报告如下。临床资料一、一般资料7例海绵肾合并结石 ,男 6 Sponge kidney is a rare congenital disease, characterized by pyramidal or cystic dilatation of the renal pyramidal teat duct and collecting tube, secondary to urinary tract stones, resulting in obstruction and infection, can lead to serious renal damage. The disease is easy to misdiagnosis, less reported in the country, our hospital (Beiyisanyuan) from 1976 to 1995 were treated in 7 cases, are as follows. Clinical data First, the general information 7 cases of sponge and kidney stones, male 6