Internal Carotid-internal Jugular Vein Arteriovenous Fistula: Case Report of an Incidental Radiological Finding

Internal carotid-internal jugular vein fistula is a direct abnormal connection between the internal carotid artery and internal jugular vein. This entity, be it congenital or acquired is rare. We present a case report of a 67 years old woman with an incidental left internal carotid-internal jugular fistula diagnosed on routine contrast enhanced CT of the brain and carotid duplex ultrasound scan. Radiologists can play a vital role in arteriovenous fistula diagnosis and treatment. Adequate assessment of cross-sectional imaging studies can identify uncommon asymptomatic arteriovenous fistulae.