Barber L, Amendola M A, Pollack H M, Van Arsdalen K N
Department of Radiology, University of Pennsylvania School of Medicine and Hospital, Philadelphia 19104.
Radiology. 1988 May;167(2):397-9. doi: 10.1148/radiology.167.2.3357946.
Routine follow-up urography demonstrated pseudoureteroceles caused by impacted calculus fragments in the distal portion of the ureter in five patients who had undergone extracorporeal shock wave lithotripsy of renal calculi 4-6 weeks before. Although all five patients showed some degree of obstruction at the time of follow-up urography, four were asymptomatic. Either small isolated fragments (two patients) or a column (steinstrasse) of fragments (three patients) was responsible for the abnormality. Two patients required further intervention to relieve the obstruction.
常规随访尿路造影显示，5例患者在4 - 6周前接受了肾结石体外冲击波碎石术，其输尿管远端因结石碎片嵌顿导致了假性输尿管囊肿。尽管所有5例患者在随访尿路造影时均显示出一定程度的梗阻，但4例患者无症状。异常情况是由小的孤立碎片（2例患者）或碎片柱（铸型结石）（3例患者）引起的。2例患者需要进一步干预以解除梗阻。
