Posterior reversible encephalopathy (PRE) is a recent syndrome characterized by headache, vomiting, seizures, visual loss, altered mental status with or without motor or sensitive deficit. Neuroimaging demonstrates symmetrical posterior cortical and subcortical lesions. The aetiology remains uncertain but vascular hypotheses is the most retained. We report a case of a 21 year old man with posterior cerebral encephalopathy, the toxic hypo these remains the most probable.
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