Fig. 3
From: Neurological manifestations of polyarteritis nodosa: a tour of the neuroaxis by case series
Case 3. Giant vertebrobasilar aneurysm. Gadolinium-enhanced MR angiogram (a) and Sagittal T1 sequence (b) demonstrate a partially thrombosed vertebrobasilar aneurysm (white arrow in A). Note the significant mass effect on the pons (black arrow). Fused conventional angiography 3D reconstruction and MR of the vertebrobasilar system with dolichoectatic vessels (red) and outline of partially thrombosed aneurysm (blue) (c). Conventional angiography with left (d) and right (e) lateral carotid injections demonstrating arteriomegaly of the anterior circulation