Transurethral urinary bladder eversion and prolapse in a castrated male pet rabbit

Abstract

A 7-year-old castrated male rabbit was presented with a red oedematous mass at the prepuce. The tissue was identified as the urinary bladder, and the condition was diagnosed as complete transurethral urinary bladder eversion. Exploratory laparotomy was performed, the prolapse was successfully reduced and the bladder was secured to the body wall with cystopexy. The surgery was successful and the bladder remained in place without complications until the time of this report (three years after surgery). Transurethral bladder prolapse is a very rare condition previously reported only in women, mares, cows, bitches, queens, and rabbit does. The case herein is the first reported case of transurethral bladder prolapse in a male of any species.

Diagnosing and treating urinary tract disease in rabbits

“…Bladder eversion is seen in multiparous does after kindling (parturition), but a transurethral eversion has also been reported in a castrated male rabbit (Szabo 2017). Treatment in these cases is surgical.…”

Disease Overview of the Urinary Tract in Exotic Companion Mammals and Tips on Clinical Management

“…This finding seems more likely in castrated males because penis length is reduced after castration. 39 Another unusual presentation is diaphragmatic herniation of retroperitoneal fat and a kidney. 40 A case of kidney herniation occurred in conjunction with a diaphragmatic lipoma.…”