Psychiatric and neurologic sequelae of infectious mononucleosis.

Infectious mononucleosis is usually thought to be a benign disease with occasional neurologic sequelae. Depression, incoordination, a reduction in intellectual ability, and altered EEG patterns were found in two patients; one recovered and the other seemed to have permanent residual effects. The possibility of tranylcypromine as a treatment for the depression and appropriate counselling of patient and family are discussed.