Below is an instruction from Human. Write a response.
    ### Instruction:
    What are the treatments for Chordoma ?
    ### Response:
    How might a chordoma be treated? Unfortunately, because chordomas are quite rare, the best treatment for these tumors has yet to be determined.  The current treatment for chordoma of the clivus often begins with surgery (resection) to remove as much of the tumor as possible.
    