Below is an instruction from Human. Write a response.
    ### Instruction:
    What are the symptoms of Childhood Brain Stem Glioma ?
    ### Response:
    The signs and symptoms of brain stem glioma are not the same in every child. Signs and symptoms depend on the following:          - Where the tumor forms in the brain.    - The size of the tumor and whether it has spread all through the brain stem.    - How fast the tumor grows.
    