Central nervous system toxoplasmosis in homosexual men.

Many opportunistic infections have been associated with an acquired immunodeficiency state in which cellular immune status has been altered. Two homosexual patients are described who presented with fever, peripheral eosinophilia, and a travel history to Haiti and were found to have central nervous system toxoplasmosis. Despite definitive diagnosis and appropriate therapy, both died. Techniques for diagnosis of central nervous system toxoplasmosis are discussed, and the importance of brain biopsy in this clinical situation is stressed. Eosinophilia may serve as an early diagnostic marker for disseminated toxoplasmosis in homosexual patients.