First described in 1996 by Hinchey et al, posterior reversible encephalopathy syndrome (PRES) is now a well know entity that can be encountered in several conditions such as uncontrolled high blood pressure, renal failure or use of some immunosuppressive agents.1 2 The diagnosis is usually evoked in the scenario of a combination of unspecific neurological symptoms (including visual disorders, seizure, headache, vigilance disturbance) and typical neuroradiological findings represented by hyperintense …