Arterovenous Micro-Malformation of the Trigeminal Root
This patient underwent a microvascular decompression that allowed for the intraoperative diagnosis of a pontine micro-AVM. The petrosal vein was found to be arterialized and the trigeminal root to be embedded in a tangle of abnormal arterialized vessels. ICG videoangiography confirmed the arterialization of the vein and identified the flow direction to be from the brainstem to the superior petrosal sinus.
Neurosurgery. 67(3):onsE309-E310, September 2010