Posterior Reversible Encephalopathy Syndrome as a Complication of Chemotherapy

Patient presented with seizures soon after starting chemotherapy for large B-cell lymphoma; magnetic resonance imaging confirmed posterior reversible encephalopathy syndrome.

Posterior reversible encephalopathy syndrome (PRES) is a neurological disorder that can present with headache, seizure, visual changes, paresis, and altered mental status. On diagnostic imaging, PRES is classically characterized by symmetrical hemispheric edema typically in the parietal and occipital regions.¹