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Bilateral visual loss in posterior reversible encephalopathy

This 47-year-old man had severe bilateral visual loss as well as confusion and decreased arousal. The blood pressure was 229/140 mmHg. The MRI revealed signal abnormality in the posterior hemispheres, predominantly in white matter. Posterior reversible encephalopathy syndrome was diagnosed, and he improved following treatment of hypertension. (Contributed by Dr. Sashank Prasad.)