Split-brain syndrome after hepatic transplantation: a tacrolimus-related vasculitis?

An unusual case of inter-haemispheric disconnection syndrome occurring in a patient who had undergone hepatic transplantation is presented. The underlying disorder, at first wrongly interpreted as encephalitis, was found to be severe, diffuse cerebral vasculitis. The hypothesis that treatment with tacrolimus might have caused, or at least favoured the vascular damage is discussed.