Posterior Reversible Encephalopathy Syndrome

Abstract

Posterior reversible encephalopathy syndrome (PRES), previously known as hypertensive encephalopathy, is a clinicoradiologic entity manifesting as acute onset of headache, encephalopathy, seizures, and vision abnormalities. The characteristic clinical features and predominantly posterior cerebral edema were first described by Hinchey and colleagues in 1996. Since then, many conditions have been associated with PRES.