Crossed cerebellar diaschesis in a patient with right hemispheric seizures

Images obtained from a 38 year old patient who presented with recurrent right hemispheric seizures. Panels A and B show abnormal signal on fluid attenuated inversion recovery (FLAIR) images in the ipsilateral cortical ribbon and in the contralateral cerebellar hemisphere. Panels C and D show reduced diffusion on diffusion weighted images in corresponding regions.