Spontaneous retrograde movement of ureteroliths in two dogs and five cats.
METHODS
2 dogs and 5 cats were evaluated for treatment of ureteroliths.


RESULTS
Spontaneous retrograde movement of 1 or more ureteroliths was detected by radiography, ultrasonography, fluoroscopy, and a combination of fluoroscopy and ultrasonography. The ureteroliths moved retrograde up to 4 centimeters. Retrograde movement of ureteroliths into the renal pelvis resulted in improved renal function in some patients but made complete surgical removal of all uroliths more difficult.


RESULTS
Medical management was not successful, and ureteroliths were surgically removed. Surgical management of ureteroliths was complicated by retrograde movement of ureteroliths in the perioperative period.


CONCLUSIONS
Ureteroliths can move retrograde within the ureter and even back into the renal pelvis. Retrograde movement of ureteroliths may make surgical planning more difficult.
Dalby
Anne M
AM
Department of Veterinary Clinical Sciences, School of Veterinary Medicine, Purdue University, West Lafayette, IN 47907-2026, USA.
Adams
Larry G
LG
Salisbury
S Kathleen
SK
Blevins
William E
WE
D000818:Animals; D002371:Cat Diseases / Q000175:diagnosis / Q000473:pathology / Q000601:surgery*; D002415:Cats; D004283:Dog Diseases / Q000175:diagnosis / Q000473:pathology / Q000601:surgery*; D004285:Dogs; D008297:Male; D009392:Nephrectomy / Q000379:methods / Q000662:veterinary; D016896:Treatment Outcome; D014514:Ureteral Calculi / Q000175:diagnosis / Q000473:pathology / Q000601:surgery / Q000662:veterinary*; D013520:Urologic Surgical Procedures / Q000662:veterinary