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Hypertensive encephalopathy: gaze deviation (MRI)

(A) Fluid-attenuated inversion recovery signal MRI demonstrating T2 hyperintensity in the posterior cerebellum in a patient who presented with acute hypertension and blindness. On examination, he had periodic alternating gaze deviation. Gaze deviations and vision substantially improved with control of blood pressure. Follow-up MRI (B) had normalized at 2 months. (From: Mackay D, Garcia RZ, Galetta S, Prasad S. Periodic alternating gaze deviation and nystagmus in posterior reversible encephalopathy syndrome. Neurol Clin Pract 2014;4(6):482-5.) (Contributed by Dr. Catherine Albin.)

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