AIDS and non-AIDS related malignancy

Immunodeficiency, whether congenital or acquired, iatrogenic (e.g. allograft recipients) or infectious (e.g. human immunodeficiency virus (HIV)), is associated with an increased risk of malignancy. In the case of HIV-related immunodeficiency, most cancers are associated with oncogenic virus co-infection. Although the overall risk of any cancer is increased 2–3-fold in HIV, there are three acquired immune deficiency syndrome (AIDS)-defining cancers whose relative risk is dramatically higher: Kaposi sarcoma, high-grade B cell non-Hodgkin lymphoma (including primary cerebral lymphoma) and invasive cervical cancer. Since the introduction of combination antiretroviral therapy, the incidence of AIDS-defining malignancies has declined. In contrast, the effect on the incidence of other cancers has been small; however, the increased longevity of people living with HIV and the ageing of this population mean that there has been a rise in number of cases of non-AIDS-defining malignancies. Recent advances in the management of malignancy in people with HIV have led to outcomes similar to those of the general population.