Figure 9: Hemorrhagic damage of the inferior colliculi in a human patient maintained on
prolonged parenteral feeding lacking vitamin B1.
From Vortmeyer AO, Hagel C, Laas R (1992) Haemorrhagic thiamine deficient encephalopathy following
prolonged parenteral nutrition. Journal of Neurology, Neurosurgery and Psychiatry 55:826-829.