Below is an instruction from Human. Write a response.
    ### Instruction:
    What is the outlook for Childhood Ependymoma ?
    ### Response:
    Certain factors affect prognosis (chance of recovery) and treatment options. The prognosis (chance of recovery) and treatment options depend on:         - Where the tumor has formed in the central nervous system (CNS).    - Whether there are certain changes in the genes or chromosomes.
    