Below is an instruction from Human. Write a response.
    ### Instruction:
    What are the stages of AIDS-Related Lymphoma ?
    ### Response:
    Key Points
                    - After AIDS-related lymphoma has been diagnosed, tests are done to find out if cancer cells have spread within the lymph system or to other parts of the body.     - There are three ways that cancer spreads in the body.    - Stages of AIDS-related lymphoma may include E and S.
    