Chorea is a movement disorder that can be caused by a large range of degenerative, vascular, metabolic and toxic disorders in basal ganglia. Arteriovenous malformations are rare vascular malformations the clinical presentation of which depends on the malformation characteristics and localization. They are most commonly presented with intracranial hemorrhage, while focal neurological deficit is the rarest presentation. A case is reported of a 64-year-old female patient presented with hemichorea. Magnetic resonance imaging and digital subtraction angiography revealed the presence of arteriovenous malformation in the right temporal lobe.
Keywords: Arteriovenous malformations; Basal ganglia diseases; Case reports; Chorea; Intracranial hemorrhages; Movement disorders.