07 January 2011

Occipital Dural Arteriovenous Fistula

Patient resents with left sided pulsatile tinnitus. CTA reveals pathologically increased arterial circulation of the Occipital Artery and Posterior Auricular Artery branches (arrows). Also noted is arterial contrast intensity in the left Sigmoid Sinus and Internal Jugular Vein (arrowheads). Finding is consistent with Dural Arteriovenous Fistula (DAVF) from the Occipital Artery circulation.
Note increased size and number of the branches from the Occipital Artery circulation.