Posterior Reversible Encephalopathy Syndrome Complicating Diabetic Ketoacidosis

Background: Posterior reversible encephalopathy syndrome (PRES) is a benign disorderof reversible subcortical vasogenic cerebral edema. Case characteristics: A 13-yr-old girlpresented 4 days after complete recovery from diabetic ketoacidosis with symptoms ofheadache, altered sensorium, seizures, and visual loss. There was no hypertension orbiochemical abnormalities identified. MRI brain showed hyperintense areas in subcorticaland periventricular white matter of bilateral fronto-parieto-occipetal lobes, with possiblediagnosis of normotensive PRES. Outcome: Full recovery without sequelae, followingneuro-protection and expectant treatment. Message: Identifying PRES in diabeticketoacidosis assists appropriate treatment and prognostication.