Atypical imaging findings in an unusual case of reversible encephalopathy syndrome

Abstract

Posterior Reversible Encephalopathy Syndrome (PRES) is a common manifestation of acute hypertensive encephalopathy, typically occurring in individuals aged 20-40 years. It is often associated with eclampsia and presents with symptoms such as seizures, headache, and visual disturbances. Characteristically, PRES shows parieto-occipital predominant FLAIR hyperintensity on MR imaging. We report an unusual case of PRES in a 55-year-old male patient with a history of hypertension and resolving post-streptococcal glomerulonephritis. This case exhibited both classic and atypical findings on CT and MRI, and the diagnosis was made through a combination of clinical and radiological correlation.