A typical involvement of posterior reversible encephalopathy syndrome diagnosed through brain magnetic resonance imaging

We report the case of a patient who exhibited a sudden change in consciousness with seizure-like behavior. Brain magnetic resonance imaging (MRI) scans revealed confluent T2 hyperintensities in the white matter of the parieto-occipital cortex and subcortex and in parts of the frontal white matter. The T2 hyperintensities extended to the splenium of the corpus callosum as well as the bilateral cerebelli and brainstem, which are areas atypically involved in posterior reversible encephalopathy syndrome (PRES). The white matter of the parieto-occipital cortex and subcortex is the most frequently involved region per MRI scans. Per relevant literature, PRES prognosis is good and PRES-related brain lesions are reversible.