What is the outlook for Osteosarcoma and Malignant Fibrous Histiocytoma of Bone ?
Certain factors affect prognosis (chance of recovery) and treatment options. The prognosis (chance of recovery) is affected by certain factors before and after treatment.    The prognosis of untreated osteosarcoma and MFH depends on the following:         - Where the tumor is in the body and whether tumors formed in more than one bone.    - The size of the tumor.    - Whether the cancer has spread to other parts of the body and where it has spread.    - The type of tumor (based on how the cancer cells look under a microscope).    - The patient's age and weight at diagnosis.    - Whether the tumor has caused a break in the bone.     - Whether the patient has certain genetic diseases.        After osteosarcoma or MFH is treated, prognosis also depends on the following:         - How much of the cancer was killed by chemotherapy.    - How much of the tumor was taken out by surgery.    - Whether chemotherapy is delayed for more than 3 weeks after surgery takes place.    - Whether the cancer has recurred (come back) within 2 years of diagnosis.        Treatment options for osteosarcoma and MFH depend on the following:         - Where the tumor is in the body.    - The size of the tumor.    - The stage of the cancer.    - Whether the bones are still growing.    - The patient's age and general health.    - The desire of the patient and family for the patient to be able to participate in activities such as sports or have a certain appearance.    - Whether the cancer is newly diagnosed or has recurred after treatment.