FLAIR

ADC

FLAIR

MR images more clearly depict the cortical and subcortical T2 hyperintensity with a posterior predominance. The areas of signal abnormality demonstrated diffusion facilitation and not restriction as seen on ADC and are therefore, inconsistent with regions of acute infarction. Note the better seen involvement of the bilateral caudate, medial thalami, and cerebella. Patient symptoms as well as the signal abnormalities on imaging were reversible and resolved, corroborating the diagnosis of PRES.