Congenital ureteral atresia in puppies

This case report aimed to describe the unique manifestations of congenital ureteral atresia that is found in puppies. A 4-month-old Husky puppy presented for pollakiuria, stranguria and urine dribbling for about a month. When examined, a mass was palpated mid-abdomen, which led to an ultrasound showing the evidence of right ureteral atresia. Hydroureter was seen on the ipsilateral side, with hydroureter bilaterally, with the contralateral left side being affected secondary to the right-sided atresia. A right-sided ureteronephrectomy was performed, resolving the stranguria and pollakiuria, and significantly reduced the contralateral hydronephrosis. Ureteral atresia should be a differential for lower urinary tract signs in young dogs, and surgery has been shown effective in preserving renal function bilaterally.

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