The purpose of this study is to obtain clinical specimens from pathologists and physicians involved in the diagnosis and care of patients with AIDS and non-AIDS associated malignancies.

The National Cancer Institute has set up a Bank for tissues and biological fluids from HIVpositive and HIV-negative individuals in order to have specimens available for scientists studying malignancies associated with HIV disease.

The overall goal of the AIDS and Cancer Specimen Bank is to obtain clinical specimens from pathologists and physicians involved in the diagnosis and care of patients with AIDS and non- AIDS associated malignancies. These specimens will be banked and linked to a clinical data set so that experimental results obtained by analysis of specific specimens can be linked to relevant clinical data. Contents of the ACSB will be made available to researchers through an application to the National Cancer Institute. Strict patient confidentiality protection guidelines are in place for all specimens in the ACSB. The objective of this protocol is to obtain clinical specimens from potential participants in clinical trials conducted by the AIDS Malignancies Consortium, and from other patients with and without HIV infection, who have AIDS-Associated malignancies.

Inclusion Criteria:

• Patient > 18 years of age
• Suspected or confirmed AIDS-Associated malignancy with or without HIV infection
• Will obtain fresh tissue and/or biological fluids
• Patient signed the correct version of the informed consent

Exclusion Criteria:

• N/A

The Source of specimens will include patients screened for participation on protocols conducted by the AIDS Malignancy Consortium, as well as other patients with HIV infection and cancer who are not eligible for participation in AMC trials, and patients without HIV who have malignancies associated with HIV or with immunosuppression.