Pseudoaneurysm of the bulbourethral branch of the internal pudendal artery presenting as a urethral pseudodiverticulum in a child.

Pseudoaneurysm of the internal pudendal artery or its branches is a rare complication of pelvic trauma. It generally causes arteriocavernosal fistula leading to priapism. Connection between the urethra and the pseudoaneurysm has been documented in a few cases; however, pseudoaneurysm causing a urethral pseudodiverticulum has not been reported. We report a 7-year-old boy with a pseudoaneurysm of the bulbourethral branch of the left internal pudendal artery leading to a urethral pseudodiverticulum.