A large arteriovenous malformation of the external ear in an adult: report of a case and approach to management.

ABSTRACT

OBJECTIVES/HYPOTHESIS: Arteriovenous malformations involving the external ear are relatively uncommon in adults. Arteriovenous malformations in the head and neck can poses difficult therapeutic challenges. STUDY DESIGN: Case report. METHODS: We report a case of a large arteriovenous malformation in the external ear in a 41-year-old man. RESULTS: Extensive enlargement of the previously latent and asymptomatic arteriovenous malformation was triggered by blunt trauma to the ear. CONCLUSION: We discuss the definition, clinical findings, diagnostic approaches, and therapeutic management of arteriovenous malformations.