Figure 2
From: Familial perimesencephalic subarachnoid hemorrhage: two case reports
Case 1. Axial magnetic resonance angiography (A, B and C) shows a Type A basal vein of Rosenthal on the right side (arrow head in A) and a Type C basal vein of Rosenthal on the left side (arrows in A, B and C). Lateral view of the venous phase of the internal carotid artery angiogram (D and E) shows a hypoplastic Type A basal vein of Rosenthal on the right side (arrow in D) and a Type C basal vein of Rosenthal draining into the superior petrosal sinus on the left side (arrow in E).