Bismuth encephalopathy. A clinical and anatomo-pathological report of one case.

A fatal case of toxic encephalopathy due to ingestion of bismuth salts is reported in a twenty year old female patient. The clinical features were characterized by a confusional state, ataxia, myoclonic jerks, and epileptic seizures. Despite supportive therapy and administration of chelating agents, there was an irreversible evolution towards coma. The immediate cause of death was an intercurrent septicaemia. The anatomo-pathological study showed non specific anoxic lesions including a widespread loss of Purkinje cells in the cerebellum. Despite a drastic decrease of bismuth levels in blood, the concentration of bismuth in visceral organs and different parts of the central nervous system remained very high.