title: Unusual computerized tomography appearance of a carotid-cavernous fistula. Case report.
abstract: A case of carotid-cavernous fistula characterized by an unusual computerized tomography (CT) pattern is reported. The CT study showed a hyperdense lesion in the right frontoparietal region, and angiography demonstrated an uncommonly large venous network in the same area. After embolization by a detachable balloon technique, these findings gradually resolved. The CT pattern was probably due to the unusually large venous drainage and to the related ischemia of the brain parenchyma.
mesh_terms: D001164:Arteriovenous Fistula / Q000000981:diagnostic imaging* / Q000628:therapy; D002340:Carotid Artery Diseases / Q000000981:diagnostic imaging* / Q000628:therapy; D002343:Carotid Artery, Internal; D002404:Catheterization; D002426:Cavernous Sinus / Q000000981:diagnostic imaging* / Q000502:physiology; D004621:Embolization, Therapeutic; D006801:Humans; D008297:Male; D008875:Middle Aged; D014057:Tomography, X-Ray Computed