Brain magnetic resonance imaging (MRI) (diffusion-weighted images (1a-1f) and corresponding apparent diffusion coefficient maps (1h-1m)) and MR angiographic (1g and 1n) studies of Case 5. Figures 1a, 1b, 1h, and 1i (captured at the time of admission) show acute/subacute infarctions at the right thalamus (arrow) and left temporal region (arrowhead). Figure 1g (captured at the time of admission) shows suspected stenosis of the left internal carotid artery (arrow). Figures 1c-1f and 1j-1m (captured on the 17th day after admission) show new infarctions in the midbrain (arrow), bilateral basal ganglia (arrowhead), and corpus callosum (arrows). Figure 1n (captured on the 17th day after admission) shows multiple cerebral arterial stenoses (arrow).