title: Bilateral carotid siphon involvement in giant cell arteritis.
abstract: A 60-year-old woman with inadequately treated giant cell arteritis developed an acute unilateral ischemic optic neuropathy associated with bilateral carotid artery and orbital bruits. Angiography demonstrated vascular changes compatible with arteritis localized to the cavernous and petrous segments of both internal carotid arteries. After treatment with high dose steroids, the bruits disappeared.
mesh_terms: D001766:Blindness / Q000209:etiology; D002339:Carotid Arteries / Q000000981:diagnostic imaging / Q000503:physiopathology*; D005260:Female; D013700:Giant Cell Arteritis / Q000150:complications / Q000000981:diagnostic imaging / Q000503:physiopathology*; D006801:Humans; D008875:Middle Aged; D011859:Radiography