Legend FLAIR images demonstrate posterior predominant areas of high signal, more severe on the right, involving the white matter. There is involvement of the right occipital cortex with associated mass effect.

Legend Abnormal white matter signal is seen on the T2 coronal image, with no restricted diffusion on DWI. Low signal is seen in the white matter on axial T1, with patchy enhancement of the posterior temporal and occipital white matter.

Legend FLAIR images document near complete resolution of the previous signal abnormalities. Key words: mri dwi white matter demyelinating mr

Brain Diagnosis: PRES - posterior reversible encephalopathy syndrome

occlusion.