Korsakoff's syndrome
Korsakoff's syndrome, with symptoms of severe anterograde and retrograde amnesia, is caused by damage to mammillary bodies and other brain regions due to deficiency of thiamine. This is most often caused by chronic alcoholism, though other conditions including severe malnutrition, have been known to cause it.
An associated disorder, Wernicke's encephalopathy often accompanies Korsakoff's syndrome and the combined syndrome is called the Wernicke-Korsakoff syndrome.
