Large pelvic arteriovenous malformation complicating laparoscopic radical prostatectomy.

Pelvic arteriovenous malformations (AVM) are rare, usually congenital, lesions, which can pose significant difficulties for pelvic surgeons. We present a case of an AVM complicating laparoscopic radical prostatectomy. Unexpected failure of preoperative control led to significant intraoperative difficulty.