AIDS-associated malignancy represents a model system for investigations of carcinogenesis. There are few human conditions in which cancer rates are of the magnitude they are in HIV infection. While studies have investigated pre-cancer markers in HIV-infected patients, they have not correlated these markers with tumor samples. This study contributes to understanding oncogenesis of HIV-associated malignancies by establishing a collection of tumors linked with pre-cancer sera and lymphocyte specimens, as well as prospective questionnaire data.