Posterior Reversible Encephalopathy Syndrome

BackgroundThe presentation of posterior reversible encephalopathy syndrome (PRES) features neuropsychiatric symptoms in the context of predominantly white matter cerebral edema in the setting of a diverse variety of underlying clinical entities.ObjectiveTo illustrate the presentation and diagnostic strategy for this under-recognized condition.MethodWe present two cases of PRES and review the available literature.ResultsPRES may be due to a number of underlying conditions, but typically presents with symptoms consistent with delirium.ConclusionsPsychiatrist practicing in the general hospital should be aware of the presentation and appropriate work-up of PRES to forestall serious potential sequelae.