A fusiform aneurysm causes the artery to bulge or balloon on all sides. This type is less common than a saccular aneurysm, which causes a bulge on one side of the artery. An aneurysm is a weakness in ...
The artery of Percheron (AOP) represents a rare anatomical variant whereby a single arterial trunk supplies both paramedian thalami and, in many cases, the rostral midbrain. Occlusion of this artery ...