CASE 2 — venous sinus coiling
Typical sigmoid sinus fistula. This patient also presented with pulsatile tinnitus.
![](http://www.neuroangio.org/wp-content/uploads/Patient_Information/Patient_Information_Dural_Fistula_B1.png)
Left external carotid injection, showing innumerable occipital feeders, and several middle meningeal ones. This might be construed as a multiple hole fistula, but it is not. The single fistula point is marked by red arrow, onto which middle meningeal branches converge.
![](http://www.neuroangio.org/wp-content/uploads/Patient_Information/Patient_Information_Dural_Fistula_B2.png)
Transvenous coil embolization of the sigmoid sinus. Notice that coil mass is tightest near the fistula, which is completely occluded. A posterior temporal vein drains into the left transverse sinus and retrograde to the right.