If eponyms are avoided, Wernicke encephalopathy, commonly known as Wernicke-Korsakoff syndrome or alcoholic encephalopathy, is a kind of thiamine (vitamin B1) deficiency that is frequently observed in alcoholics. Imaging typically reveals mamillary bodies, dorsomedial thalami, tectal plate, periaqueductal area, and/or the area around the third ventricle as areas of symmetrical enhanced T2/FLAIR signal.