Lymphomas in the immunocompromised patient.

Lymphoma is a common opportunistic complication of immunosuppression. Lymphomas in patients with the acquired immunodeficiency syndrome (AIDS) may broadly be divided into four major types: intermediate- or high-grade systemic lymphoma, primary central nervous system (CNS) lymphoma, Hodgkin's disease (HD) and primary effusion lymphoma. Multiple active regimens have been identified for patients with AIDS-related systemic lymphoma. However, despite high initial complete response rates, most studies have reported a median survival of less than 1 year for these patients, with approximately half of the patients dying from lymphoma and half from opportunistic infections or other AIDS-related complications. The standard therapeutic approach for patients with AIDS-related primary CNS lymphoma is radiotherapy, although recent studies using combinations of chemotherapy with radiotherapy may offer an improvement in therapy for this group of patients who have very poor overall prognosis. Lymphoproliferative disease in patients after solid organ or bone marrow transplantation represents with a spectrum of disorders. No standard approach for therapy in this group of patients has been clearly established.