Intracranial Arteriovenous Malformations

**Definition:** Congenital vascular anomalies in the brain characterized by direct communication between an artery and a vein without passing through the CAPILLARIES. The locations and size of the shunts determine the symptoms including HEADACHES; SEIZURES; STROKE; INTRACRANIAL HEMORRHAGES; mass effect; and vascular steal effect.

**Tree numbers:** - C10.228.140.300.520 - C10.500.190.500 - C14.240.850.750.295 - C14.240.850.875.500 - C14.907.150.295 - C14.907.253.560.400 - C16.131.240.850.750.295 - C16.131.240.850.875.500 - C16.131.666.190.500

**Synonyms:** - AVM (Arteriovenous Malformation) Intracranial - Congenital Intracranial Arteriovenous Malformations - Intracranial Arteriovenous Malformations, Congenital