title: [Duplex sonography in carotid-cavernous sinus fistula].
abstract: The absence of valves in the ophthalmic veins leads to a reversal of flow and marked vascular dilatation if there is a carotid-cavernous sinus fistula. Based on a case report, the possibility of accurate duplex sonographic evaluation of these findings is shown. Duplex sonography should be employed as a simple, non-invasive and inexpensive diagnostic method even if the likelihood of a carotid-cavernosus sinus fistula is remote.
mesh_terms: D000368:Aged; D002346:Carotid Sinus; D002426:Cavernous Sinus; D002561:Cerebrovascular Disorders / Q000175:diagnosis*; D005260:Female; D005402:Fistula / Q000175:diagnosis*; D006801:Humans; D008279:Magnetic Resonance Imaging; D014463:Ultrasonography / Q000379:methods*
vernacular_title: Duplexsonographie bei Karotis-Sinus-cavernosus-Fistel.