MRI, DSA and funduscopic studies. a) Axial fluid-attenuated inversion recovery image showing multiple small white matter lesions. b) Diffusion-weighted image with multiple small lesions exhibiting diffusion restriction (arrows) and correspondingly decreased ADC values (not shown). c) Sagittal T2 image showing centrally located corpus callosum lesions (arrow) and one lesion with spoke-like morphology (tailed arrow). d) Near-median sagittal T2 image demonstrating atrophy of the corpus callosum. e) Contrast-enhanced T1 image with multiple small contrast-enhancing lesions (arrows). f) Large ischemic area in the lower half of the left retina (arrow) and smaller infarct in the top left quadrant (tailed arrow).