Modified perineal urethrostomy for the management of congenital urethral diverticulum in a 4-month-old feline

A male, intact, four-month-old feline was referred for veterinary evaluation due to persistent episodes of urinary incontinence that began two months prior, along with a protrusion under the skin in the perineal region. The patient was presumptively treated for cystitis but continued to experience recurrent episodes of urinary incontinence. Following a retrograde contrast urethrocystography and urine collection through guided puncture of the protrusion, a suspicion of urethral diverticulum arose. Therefore, the treatment option was to perform amodified technique of perineal urethrostomy using the diverticulum in the pelvic urethra, through both abdominal and perineal surgical approaches. Two months post-surgery, the patient no longer exhibited clinical signs of urinary incontinence. The modified perineal urethrostomy technique proved to be a viable treatment option for young cats with urethral diverticulum. This is the third case reported in the veterinary literature of a young feline patient with suspected urethral diverticulum that successfully responded to surgical treatment with perineal urethrostomy.