Coronal and axial FLAIR images show hyperintense signal and mild swelling of the bilateral frontal cortex, hippocampi, dorsal thalami as well as focal hyperintensities in the left caudate and lentiform nuclei. Axial T2-weighted images demonstrate an additional small focal pontine hyperintensity. Diffusion-weighted images and ADC maps demonstrate corresponding diffusion restriction in the bilateral frontoparietal cortex, thalami and hippocampi.