10.22376/ijpbs.2019.10.1.p1-12 Volume 5 Issue 4 2014 (October - December) Posterior reversible encephalopathy syndrome (PRES) its known as hypertensive encephalopathy, is a neurotoxic state that occurs secondary due to the inability of auto-regulatory response to acute changes in blood pressure. Its associated with multiple complex conditions such as preeclampsia/eclampsia,allogeneic bone marrow transplantation, organ transplantation autoimmune disease and high dose chemotherapy. The correlation of imaging and clinical features is necessary for the diagnosis. Here we are going to discuss about the unique abnormal variant of posterior reversible encephalopathy syndrome DR.SATHISH PRABHU AND DR.PRABAKARAN.M Posterior reversible encephalopathy syndrome (PRES), clinic radiologic entity, cytotoxic edema 79-82