异位输尿管囊肿是指囊状扩张的输尿管未端异常嵌入膀胱腔内。儿童中75％的输尿管囊肿是异位型的。此病也是女孩下尿路梗阻的最常见原因。具有严重肾积水和感染的女婴也应想到这一诊断。输尿管囊肿与重复收集系统的上半肾有关;15％的输尿管囊肿与返流有关。作者报道了32例儿童输尿管囊肿的治疗经验。 Ectopic ureter cyst refers to the cystic dilatation of the ureter abnormalities embedded in the bladder cavity. About 75% of ureteral cysts in children are ectopic. The disease is also the most common cause of lower urinary tract obstruction in girls. Baby girls with severe hydronephrosis and infections should also think of this diagnosis. Uretero-cysts are associated with the upper half of the repeat collection system; 15% of ureteroceras are associated with reflux. The authors report 32 cases of ureteral cyst treatment experience.