Wernicke's encephalopathy in an autopsy material obtained over a one-year period.

In a material comprising 279 consecutive autopsies obtained over a one-year period there were four cases of Wernicke's encephalopathy (WE), of which three were inactive (chronic) and one was active (acute). The latter was not related to chronic alcoholism. Our findings show that WE may be regularly present in a routine autopsy series. In only one case was WE suspected clinically and none of the cases revealed macroscopic brain changes indicative of WE. We therefore suggest that sections of the mammillary bodies should be taken routinely to detect all possible cases of WE.