title: Obstructive migration of renal calculi following cyst aspiration.
abstract: The authors report 3 cases of ureteral obstruction secondary to puncture of peri-pelvic renal cysts which had been obstructing and dilating the renal pelvis. In each case, non-obstructive calculi passed from the upper collecting system into the ureter or infundibulum within 72 hours of decompression, causing acute renal colic and marked obstruction.
mesh_terms: D000368:Aged; D006801:Humans; D001239:Inhalation; D007669:Kidney Calculi / Q000150:complications* / Q000000981:diagnostic imaging; D052177:Kidney Diseases, Cystic / Q000150:complications / Q000601:surgery*; D008297:Male; D008875:Middle Aged; D011183:Postoperative Complications; D011859:Radiography; D014517:Ureteral Obstruction / Q000000981:diagnostic imaging / Q000209:etiology*