Posterior Reversible Encephalopathy Syndrome as a Simultaneous Manifestation of Guillain-Barre Syndrome in an Elderly Female Patient

We report a 62-year-old woman with a simultaneous occurrence of posterior reversible encephalopathy syndrome (PRES) and Guillain-Barre syndrome (GBS). The simultaneous presence of PRES in GBS is unusual and can easily escape recognition, with potentially serious consequences for the patient. Previous reports showed that the simultaneous or initial manifestation of PRES in GBS is more common in elderly female. The preponderance of female in older age may be due to age and gender related difference in sympathetic nerve activity.