Manic behavior resulting from left frontal closed head injury in an adult with fetal alcohol syndrome.

Closed head trauma has been associated with various neuropsychiatric sequelae, including mood disturbances such as depression and mania. Although mood disturbances can occur with injury to either hemisphere, mania has been primarily associated with right-side frontal lobe injury. We present a case of manic behavior after a closed head injury to the left hemisphere in an adult with preexisting fetal alcohol syndrome.