Posterior reversible encepalopathy syndrome (PRES), or reversible posterior leukoencephalopathy, is a neurologic condition characterized by recognizable pattern of altered mental status, headache, visual changes and seizures in association with findings indicating a predominantly posterior leucoencephalopathy on imaging studies. It has rarely been described in children. We report two cases of pediatric systemic lupus erythematosus (SLE) complicated by PRES and review the literature. Lupus (2007) 16, 576—579.
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