title: Optic atrophy and the Wyburn-Mason syndrome.
abstract: A 14-year-old girl developed impaired vision and optic atrophy of the left eye as a manifestation of an orbital and parachiasmal arteriovenous malformation. Despite the lack of a retinal arteriovenous malformation, this condition appears to be a variant of the Wyburn -Mason syndrome, representing a vascular dysgenesis of the orbit and midbrain resulting in focal arteriovenous communications without interposed capillaries.
mesh_terms: D000293:Adolescent; D002533:Cerebral Angiography; D005260:Female; D005451:Fluorescein Angiography; D006801:Humans; D002538:Intracranial Arteriovenous Malformations / Q000175:diagnosis* / Q000473:pathology; D009896:Optic Atrophy / Q000175:diagnosis* / Q000473:pathology; D009897:Optic Chiasm / Q000473:pathology