title: Posterior reversible encephalopathy syndrome.
abstract: BACKGROUND
  The 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.
  
  
  OBJECTIVE
  To illustrate the presentation and diagnostic strategy for this under-recognized condition.
  
  
  METHODS
  We present two cases of PRES and review the available literature.
  
  
  RESULTS
  PRES may be due to a number of underlying conditions, but typically presents with symptoms consistent with delirium.
  
  
  CONCLUSIONS
  Psychiatrist practicing in the general hospital should be aware of the presentation and appropriate work-up of PRES to forestall serious potential sequelae.
authors.affiliation: Department of Neurology, Barrow Neurological Institute at St. Joseph's Hospital and Medical Center, Phoenix, AZ 85013, USA.
authors.forename: Courtney M
authors.initials: CM
authors.lastname: Schusse
authors.forename: Alicia L
authors.initials: AL
authors.lastname: Peterson
authors.forename: Jason P
authors.initials: JP
authors.lastname: Caplan
mesh_terms: D001921:Brain / Q000098:blood supply / Q000473:pathology; D001929:Brain Edema / Q000209:etiology*; D059350:Chronic Pain; D003693:Delirium / Q000175:diagnosis / Q000209:etiology*; D003937:Diagnosis, Differential; D004461:Eclampsia / Q000503:physiopathology*; D004569:Electroencephalography; D005260:Female; D006706:Homeostasis / Q000502:physiology; D006801:Humans; D006973:Hypertension / Q000150:complications*; D053609:Lethargy / Q000209:etiology; D008279:Magnetic Resonance Imaging; D008875:Middle Aged; D054038:Posterior Leukoencephalopathy Syndrome / Q000175:diagnosis / Q000473:pathology / Q000503:physiopathology; D011247:Pregnancy; D012640:Seizures / Q000209:etiology; D055815:Young Adult