Bauer S B, Retik A B
J Urol. 1978 Jun;119(6):804-7. doi: 10.1016/s0022-5347(17)57638-7.
We have seen 5 children with a non-obstructive ectopic ureterocele associated with an undilated upper pole collecting system. Thus the telltale signs of renal duplication found with obstruction of the upper pole were absent. Cystoscopy confirmed the diagnosis when retrograde injection of the ureterocele outlined a narrow ureter and small dysplastic kidney. Because reflux usually was present in the ipsilateral lower pole ureter (86 per cent) surgical treatment consisted of excision of the ureterocele and common sheath ureteral reimplantation. Removal of the small non-functioning upper renal segment was not necessary in most instances. The embryology of this anomaly is discussed.
我们见过5例患有非梗阻性异位输尿管囊肿且上极集合系统未扩张的儿童。因此，未出现上极梗阻时所发现的肾重复畸形的特征性表现。膀胱镜检查在向输尿管囊肿逆行注射造影剂勾勒出狭窄输尿管和发育不良的小肾脏时确诊。由于同侧下极输尿管通常存在反流（86%），手术治疗包括切除输尿管囊肿和将共同鞘输尿管重新植入。在大多数情况下，无需切除无功能的小上肾段。本文讨论了这种异常的胚胎学。
