Below is an instruction from Human. Write a response.
    ### Instruction:
    What is the outlook for Anal Cancer ?
    ### Response:
    Certain factors affect the prognosis (chance of recovery) and treatment options. The prognosis (chance of recovery) depends on the following:         - The size of the tumor.    -  Where the tumor is in the anus.    - Whether the cancer has spread to the lymph nodes.
    