A Rare Presentation of Posterior Reversible Encephalopathy Syndrome in Recovery Phase of Guillain–Barré Syndrome

Posterior reversible encephalopathy syndrome (PRES) is a clinical and radiological syndrome, in which a patient presents with neurological symptoms, including headache, seizures, altered sensorium, and loss of vision, and accompanied with characteristic magnetic resonance imaging findings which are likely to be reversible. Guillain–Barré syndrome (GBS) is an acute demyelinating polyneuropathy presumably related to immunological mechanisms. Here, we describe a patient who had PRES in recovery phase of GBS while he was neither on any immunomodulator nor was having hypertension. He recovered completely clinically as well as radiologically.