Journal
INTERVENTIONAL NEURORADIOLOGY
Volume 12, Issue 4, Pages 327-334Publisher
EDIZIONI CENTAURO
DOI: 10.1177/159101990601200406
Keywords
bilateral persistent pharyngo-stapedial arteries; three tesla MR angiography; carotid-cavernous fistula
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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 follow-up included 3 Tesla MR angiography that showed complete closure of the fistula with preservation of the right ICA and bilateral persistent pharyngo-stapedial arteries.
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