Arteriovenous malformation of the nasopharynx: a case report.

Arteriovenous malformation (AVM) of the head and neck is a rare vascular anomaly but when present is persistent and progressive in nature and can represent itself truly as a lethal benign disease. We present here an unusual case of an AVM with the size of 1.5 cm x 0.8 cm at the adenoid tissue found in an 8-year-old boy, which is not previously reported in the literature where we treated the patient with surgery alone. Although bleeding is a common presentation with vascular malformations, we have not seen any bleeding in our case. After the surgery, paranasal sinus and neck CT were undertaken. They showed no other AVM.