Posterior reversible encephalopathy syndrome as the first manifestation of chronic kidney disease.

Posterior reversible encephalopathy syndrome (PRES), a term coined in 1996, describes a clinico-radiologic entity characterised by headache, seizures, decreased vision, impaired consciousness and white matter oedema in bilateral occipito-parietal regions [1]. Hypertensive encephalopathy, eclampsia, immunosuppressive/cytotoxic drugs, organ transplantation, renal disease, autoimmune diseases and vasculitides are reported risk factors of PRES [1, 2]. Although potentially reversible, delay in treatment can result in permanent brain damage [3, 4].