Peripheral T-cell lymphoma in HIV-infected patients: a study of 17 cases in the combination antiretroviral therapy era

Most cases of human immunodeficiency virus (HIV)-associated non-Hodgkin Lymphoma (NHL) are of B-cell origin; T-cell NHLs are rarely reported. Within a single centre prospective cohort of 370 HIV-NHL, 17 (5%) were of T-cell origin (82% male; median age, 39years). Median CD4+ cell count was 0 center dot 194x109/l and 41% had undetectable plasma HIV-RNA at lymphoma diagnosis. All patients received combination antiretroviral therapy during chemotherapy. All histological samples were centrally reviewed. The distribution of the histological subtypes differed from the general population with absence of angioimmunoblastic subtype. Lymphoma was disseminated in 14 patients, and seven patients had performance status >2. All patients received full-dose chemotherapy: eight standard and nine intensive regimens. Two patients who received intensive chemotherapy died during therapy. The complete remission rate was 53%; 62 center dot 5% with standard therapy and 44% with intensive therapy. After a median follow-up of 7 center dot 2years, the median overall survival was 9 center dot 4months. Most deaths (85%) occurred within the first year following diagnosis, as a consequence of lymphoma progression in 10/13 cases. In this rare but severe complication of HIV infection the use of intensive chemotherapy does not appear to be beneficial for response, with increased toxicity.