Enlarged PVS are evident in temporal pole because of its unique convolutional structure and vascularization by the branches of the anterior temporal artery. Increased PVS may reflect WMHs on MRI  since the resolution of MRI is currently not sufficiently high  to distinguish single large fluid-filled space (~2 mm) from cluster small spaces.
The main stem of the middle cerebral artery is the lenticuiostriate artery. This artery supplies blood to parts of the basal ganglia and fibers of the internal capsule.[4,8,12] Near the sylvian fissure, the middle cerebral artery separates into three cortical branches: the anterior temporal artery, superior trunk and inferior trunk.[4,8] These three vessels supply blood to the cortical surfaces of the parietal, temporal and frontal lobes. The pattern of middle cerebral artery occlusion determines which clinical symptoms a patient exhibits (Table 1).