Bilateral symmetrical basal ganglia infarction after intravenous use of cocaine and heroin.

A case is reported of a young man who developed bilateral symmetrical basal ganglia infarcts after intravenous use of cocaine and heroin. Ischemic infarcts of the brain are a known complication of to cocaine use, alone or in combination with heroin (speed balling). This symmetrical occurrence of infarction, however, is unusual and has not been reported after cocaine use.