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MRI of the brain in a PML survivor with seizures. a Axial fluid-attenuated inversion recovery (FLAIR) sequence demonstrating left greater than right frontal juxtacortical white matter hyperintense PML lesions. b Axial T1 pre-contrast image demonstrating hyperintense cortical signal (HCS, arrows). c Axial T1-post-contrast image demonstrating diffuse enhancement of the left frontal PML lesion
