Swiss Cheese Striatum

A 92-year-old woman presented with new-onset confusion and admission brain computed tomography (CT) showed bilateral symmetric low attenuation of the striatum (Figure 1A). Brain magnetic resonance (MR) showed an area of restricted-diffusion consistent with an acute left posterior cerebral artery territory infarction (not shown), and T2-weighted sequence showed numerous bilateral symmetric small hyperintensities in the striatum (Figure 1B)