Burkitt-like lymphoma in a hemophilic boy with impaired cellular immunity.

Burkitt-like lymphoma was seen in a hemophilic boy with impaired cell-mediated immunity, of the type described in healthy hemophiliacs. The coexistence of two rare diseases, hemophilia and Burkitt's lymphoma in an immunosuppressed patient is suggestive of a blood-borne agent transmitted with factor VIII concentrates which might be an immune modifier and/or oncogenic at the same time.