Pelvic Arteriovenous Malformation (AVM) in Male Patient Presented as Perineal Pain: A Case Report and Review of Literature

Pelvic arteriovenous malformations (AVM) of the pelvis are rare diseases and difficult to treat due to complex pelvic anatomy and extensive feeding vessel. Diagnosis of pelvic AVM relies on transrectal ultrasound (TRUS) and digital rectal examination as initial survey and computed tomography (CT) as secondary evaluation. Treatment options include surgical resection and embolization. We reported as 41-year-old male patient with congenital pelvic AVM that presented as perineal pain. TRUS revealed hypoechoic lesion with turbulent blood flow. CT demonstrated engorged vessel and angiography suggested high flow AVM with feeding artery from the right internal pudendal artery. Congenital pelvic AVM was diagnosed, but the patient refused treatment and requested clinical follow-up.