title: Bilateral Persistent Pharyngo-Stapedial Arteries Revealed during Evaluation of a Carotid-Cavernous Fistula. 3 Tesla MR Angiographic Aspects.
abstract: A 33-year-old woman was evaluated for a right carotid-cavernous fistula revealed by a proptosis and chemosis of the right eye. The initial angiogram showed a left persistent pharyngo- stapedial artery (Ph-SA). A temporal bone CT suggested bilateral pharyngo-stapedial artery persistence. The right Ph-SA was not opacified in the first angiogram because of the high degree of shunting in the fistula. Four months later the patient was admitted for treatment of the carotid-cavernous fistula. In the meantime, the fistula had altered, with spontaneous thrombosis of the ophthalmic vein, and decrease of the vascular steal, explaining that the right Ph-SA was clearly visible on the angiogram performed during the procedure. The carotid-cavernous fistula was completely occluded with five detachable coils. The followup included 3 Tesla MR angiography that showed complete closure of the fistula with preservation of the right ICA and bilateral persistent pharyngo-stapedial arteries.
authors.affiliation: Department of Neuroradiology, University Hospital Jean Minjoz, Besançon, France.
authors.forename: J
authors.initials: J
authors.lastname: Jehl
authors.forename: L
authors.initials: L
authors.lastname: Jeunet
authors.forename: M
authors.initials: M
authors.lastname: Berraiah
authors.forename: J F
authors.initials: JF
authors.lastname: Bonneville