Below is an instruction from Human. Write a response.
    ### Instruction:
    What is the outlook for Oropharyngeal Cancer ?
    ### Response:
    Certain factors affect prognosis (chance of recovery) and treatment options. The prognosis (chance of recovery) depends on the following:          -  Whether the patient has HPV infection of the oropharynx.    - Whether the patient has a history of smoking cigarettes for ten or more pack years.
    