Pseudoureteroceles following extracorporeal shock wave lithotripsy.
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.
Barber
L
L
Department of Radiology, University of Pennsylvania School of Medicine and Hospital, Philadelphia 19104.
Amendola
M A
MA
Pollack
H M
HM
Van Arsdalen
K N
KN
D000328:Adult; D000368:Aged; D005260:Female; D006801:Humans; D007669:Kidney Calculi / Q000628:therapy; D008096:Lithotripsy / Q000009:adverse effects*; D008297:Male; D008875:Middle Aged; D011859:Radiography; D014518:Ureterocele / Q000000981:diagnostic imaging / Q000209:etiology*