Osteosarcoma and Malignant Fibrous Histiocytoma of Bone Treatment (PDQ®): Treatment - Patient Information [NCI]

This information is produced and provided by the National Cancer Institute (NCI). The information in this topic may have changed since it was written. For the most current information, contact the National Cancer Institute via the Internet web site at http://cancer.gov or call 1-800-4-CANCER.

Osteosarcoma and Bone Fibrous Histiocytoma Treatment

General Information About Osteosarcoma and Malignant Fibrous Histiocytoma of Bone

Osteosarcoma and malignant fibrous histiocytoma (MFH) of the bone are diseases in which malignant (cancer) cells form in bone.

Osteosarcoma usually starts in osteoblasts, which are a type of bone cell that becomes new bone tissue. Osteosarcoma is most common in teenagers. It commonly forms in the ends of the long bones of the body, which include bones of the arms and legs. In children and teenagers, it often forms in the bones near the knee. Rarely, osteosarcoma may be found in soft tissue or organs in the chest or abdomen.

Osteosarcoma is the most common type of bone cancer. Malignant fibrous histiocytoma (MFH) of bone is a rare tumor of the bone. It is treated like osteosarcoma.

Ewing sarcoma is another kind of bone cancer, but it is not covered in this summary. See the PDQ summary about Ewing Sarcoma Family of Tumors for more information.

Having past treatment with radiation can increase the risk of osteosarcoma.

Anything that increases your risk of getting a disease is called a risk factor. Having a risk factor does not mean that you will get cancer; not having risk factors doesn't mean that you will not get cancer. Talk with your child's doctor if you think your child may be at risk. Risk factors for osteosarcoma include the following:

  • Past treatment with radiation therapy.
  • Past treatment with anticancer drugs called alkylating agents.
  • Having a certain change in the retinoblastoma gene.
  • Having certain conditions, such as the following:
    • Hereditary retinoblastoma.
    • Paget disease.
    • Diamond-Blackfan anemia.
    • Li-Fraumeni syndrome.
    • Rothmund-Thomson syndrome.
    • Bloom syndrome.
    • Werner syndrome.

Possible signs of osteosarcoma and MFH include pain and swelling over a bone or a bony part of the body.

These and other symptoms may be caused by osteosarcoma or MFH. Other conditions may cause the same symptoms. Check with a doctor if your child has any of the following problems:

  • Swelling over a bone or bony part of the body.
  • Pain in a bone or joint.
  • A bone that breaks for no known reason.

Imaging tests are used to detect (find) osteosarcoma and MFH.

Imaging tests are done before the biopsy. The following tests and procedures may be used:

  • Physical exam and history: An exam of the body to check general signs of health, including checking for signs of disease, such as lumps or anything else that seems unusual. A history of the patient's health habits and past illnesses and treatments will also be taken.
  • X-ray: An x-ray of the organs and bones inside the body. An x-ray is a type of energy beam that can go through the body and onto film, making a picture of areas inside the body.
  • CT scan (CAT scan): A procedure that makes a series of detailed pictures of areas inside the body, taken from different angles. The pictures are made by a computer linked to an x-ray machine. A dye may be injected into a vein or swallowed to help the organs or tissues show up more clearly. This procedure is also called computed tomography, computerized tomography, or computerized axial tomography.
  • MRI (magnetic resonance imaging): A procedure that uses a magnet, radio waves, and a computer to make a series of detailed pictures of areas inside the body. This procedure is also called nuclear magnetic resonance imaging (NMRI).

A biopsy is done to diagnose osteosarcoma.

Cells and tissues are removed during a biopsy so they can be viewed under a microscope by a pathologist to check for signs of cancer. It is important that the biopsy be done by a surgeon who is an expert in treating cancer of the bone. It is best if that surgeon is also the one who removes the tumor. The biopsy and the surgery to remove the tumor are planned together. The way the biopsy is done affects which type of surgery can be done later.

The type of biopsy that is done will be based on the size of the tumor and where it is in the body. There are three types of biopsy that may be used:

  • Fine-needle aspiration (FNA) biopsy: The removal of tissue or fluid using a thin needle.
  • Core biopsy: The removal of tissue using a wide needle.
  • Incisional biopsy: The removal of part of a lump or a sample of tissue that doesn't look normal.
  • Excisional biopsy: The removal of an entire lump or area of tissue that doesn't look normal.

The following tests may be done on the tissue that is removed:

  • Light and electron microscopy: A laboratory test in which cells in a sample of tissue are viewed under regular and high-powered microscopes to look for certain changes in the cells.
  • Cytogenetic analysis: A laboratory test in which cells in a sample of tissue are viewed under a microscope to look for certain changes in the chromosomes.
  • Immunocytochemistry study: A laboratory test in which a substance such as an antibody, dye, or radioisotope is added to a sample of cancer cells to test for certain antigens. This type of study is used to tell the difference between different types of cancer.

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 at diagnosis.
  • 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.

Stages of Osteosarcoma and Malignant Fibrous Histiocytoma of Bone

After osteosarcoma or malignant fibrous histiocytoma (MFH) has been diagnosed, tests are done to find out if cancer cells have spread to other parts of the body.

The process used to find out if cancer has spread to other parts of the body is called staging. For osteosarcoma and malignant fibrous histiocytoma (MFH), most patients are grouped according to whether cancer is found in only one part of the body or has spread. The following tests and procedures may be used:

  • X-ray: An x-ray of the organs and bones inside the body. An x-ray is a type of energy beam that can go through the body and onto film, making a picture of areas inside the body. X-rays will be taken of the chest and the area where the tumor formed.
  • CT scan (CAT scan): A procedure that makes a series of detailed pictures of areas inside the body, taken from different angles. The pictures are made by a computer linked to an x-ray machine. A dye may be injected into a vein or swallowed to help the organs or tissues show up more clearly. This procedure is also called computed tomography, computerized tomography, or computerized axial tomography. Pictures will be taken of the chest and the area where the tumor formed.
  • MRI (magnetic resonance imaging): A procedure that uses a magnet, radio waves, and a computer to make a series of detailed pictures of areas inside the body. This procedure is also called nuclear magnetic resonance imaging (NMRI).
  • Bone scan: A procedure to check if there are rapidly dividing cells, such as cancer cells, in the bone. A very small amount of radioactive material is injected into a vein and travels through the bloodstream. The radioactive material collects in the bones and is detected by a scanner.
  • PET scan (positron emission tomography scan): A procedure to find malignant tumor cells in the body. A small amount of radioactive glucose (sugar) is injected into a vein. The PET scanner rotates around the body and makes a picture of where glucose is being used in the body. Malignant tumor cells show up brighter in the picture because they are more active and take up more glucose than normal cells do.

There are three ways that cancer spreads in the body.

The three ways that cancer spreads in the body are:

  • Through tissue. Cancer invades the surrounding normal tissue.
  • Through the lymph system. Cancer invades the lymph system and travels through the lymph vessels to other places in the body.
  • Through the blood. Cancer invades the veins and capillaries and travels through the blood to other places in the body.

When cancer cells break away from the primary (original) tumor and travel through the lymph or blood to other places in the body, another (secondary) tumor may form. This process is called metastasis. The secondary (metastatic) tumor is the same type of cancer as the primary tumor. For example, if bone cancer spreads to the lung, the cancer cells in the lung are actually bone cancer cells. The disease is metastatic bone cancer, not lung cancer.

Osteosarcoma and MFH are described as either localized or metastatic.

  • Localized osteosarcoma or MFH has not spread out of the bone where the cancer started. There may be one or more areas of cancer in the bone that can be removed during surgery.
  • Metastatic osteosarcoma or MFH has spread from the bone in which the cancer began to other parts of the body. The cancer most often spreads to the lungs. It may also spread to other bones.

Recurrent Osteosarcoma and Malignant Fibrous Histiocytoma of Bone

Recurrent osteosarcoma and malignant fibrous histiocytoma (MFH) of bone are cancers that have recurred (come back) after being treated. The cancer may come back in the bone or in other parts of the body. Osteosarcoma and MFH most often recur in the lung, bone, or both. When osteosarcoma recurs, it is usually within 18 months after treatment is completed.

Treatment Option Overview

There are different types of treatment for patients with osteosarcoma or malignant fibrous histiocytoma (MFH) of bone.

Different types of treatment are available for children with osteosarcoma or malignant fibrous histiocytoma (MFH) of bone. Some treatments are standard (the currently used treatment), and some are being tested in clinical trials. A treatment clinical trial is a research study meant to help improve current treatments or obtain information on new treatments for patients with cancer. When clinical trials show that a new treatment is better than the standard treatment, the new treatment may become the standard treatment.

Because cancer in children is rare, taking part in a clinical trial should be considered. Some clinical trials are open only to patients who have not started treatment.

Children with osteosarcoma or MFH should have their treatment planned by a team of health care providers with expertise in treating cancer in children.

Treatment will be overseen by a pediatric oncologist, a doctor who specializes in treating children with cancer. The pediatric oncologist works with other pediatric health care providers who are experts in treating osteosarcoma and MFH and who specialize in certain areas of medicine. These may include the following specialists:

  • Orthopedic surgeon.
  • Radiation oncologist.
  • Rehabilitation specialist.
  • Pediatric nurse specialist.
  • Social worker.
  • Psychologist.

Some cancer treatments cause side effects months or years after treatment has ended.

Side effects from cancer treatment that begin during or after treatment and continue for months or years are called late effects. Late effects of cancer treatment may include the following:

  • Physical problems.
  • Changes in mood, feelings, thinking, learning, or memory.
  • Second cancers (new types of cancer).

Some late effects may be treated or controlled. It is important to talk with your child's doctors about the effects cancer treatment can have on your child. (See the PDQ summary on Late Effects of Treatment for Childhood Cancer for more information).

Four types of standard treatment are used:

Surgery

Surgery to remove the entire tumor will be done when possible. Chemotherapy may be given before surgery to make the tumor smaller. This is called neoadjuvant chemotherapy. Chemotherapy is given so less bone tissue needs to be removed and there are fewer problems after surgery.

The following types of surgery may be done:

  • Wide local excision: Surgery to remove the cancer and some healthy tissue around it.
  • Limb-sparing surgery: Removal of the tumor in a limb (arm or leg) without amputation, so the use and appearance of the limb is saved. Most patients with osteosarcoma in a limb can be treated with limb-sparing surgery. The tumor is removed by wide local excision. Tissue and bone that are removed may be replaced with a graft using tissue and bone taken from another part of the patient's body, or with an implant such as artificial bone. If a fracture is found at diagnosis or during chemotherapy before surgery, limb-sparing surgery may still be possible in some cases. If the surgeon is not able to remove all of the tumor and enough healthy tissue around it, an amputation may be done.
  • Amputation: Surgery to remove part or all of an arm or leg. This may be done when it is not possible to remove all of the tumor in limb-sparing surgery. The patient may be fitted with a prosthesis (artificial limb) after amputation.
  • Rotationplasty: Surgery to remove the tumor and the knee joint. The part of the leg that remains below the knee is then attached to the part of the leg that remains above the knee, with the foot facing backward and the ankle acting as a knee. A prosthesis may then be attached to the foot.

Studies have shown that survival is the same whether the first surgery done is a limb-sparing surgery or an amputation.

Even if the doctor removes all the cancer that can be seen at the time of the surgery, patients are also given chemotherapy after surgery to kill any cancer cells that are left in the area where the tumor was removed or that have spread to other parts of the body. Treatment given after the surgery, to lower the risk that the cancer will come back, is called adjuvant therapy.

Chemotherapy

Chemotherapy is a cancer treatment that uses drugs to stop the growth of cancer cells, either by killing the cells or by stopping them from dividing. When chemotherapy is taken by mouth or injected into a vein or muscle, the drugs enter the bloodstream and can reach cancer cells throughout the body (systemic chemotherapy). When chemotherapy is placed directly into the cerebrospinal fluid, an organ, or a body cavity such as the abdomen, the drugs mainly affect cancer cells in those areas (regional chemotherapy). Combination chemotherapy is the use of more than one anticancer drug. The way the chemotherapy is given depends on the type and stage of the cancer being treated.

In the treatment of osteosarcoma and malignant fibrous histiocytosis of bone, chemotherapy is usually given before and after surgery to remove the primary tumor.

See Drugs Approved for Bone Cancer for more information.

Radiation therapy

Radiation therapy is a cancer treatment that uses high-energy x-rays or other types of radiation to kill cancer cells or keep them from growing. There are two types of radiation therapy. External radiation therapy uses a machine outside the body to send radiation toward the cancer. Internal radiation therapy uses a radioactive substance sealed in needles, seeds, wires, or catheters that are placed directly into or near the cancer. The way the radiation therapy is given depends on the type and stage of the cancer being treated.

Osteosarcoma and MFH cells are not killed easily by radiation therapy. It may be used when a small amount of cancer is left after surgery or used together with other treatments.

Samarium

Samarium is a radioactive drug that targets areas where bone cells are growing, such as tumor cells in bone. It helps relieve pain caused by cancer in the bone and it also kills blood cells in the bone marrow. It also is used to treat osteosarcoma that has come back after treatment in a different bone.

Treatment with samarium may be followed by stem cell transplant. Before treatment with samarium, stem cells (immature blood cells) are removed from the blood or bone marrow of the patient and are frozen and stored. After treatment with samarium is complete, the stored stem cells are thawed and given back to the patient through an infusion. These reinfused stem cells grow into (and restore) the body's blood cells.

New types of treatment are being tested in clinical trials.

This summary section describes treatments that are being studied in clinical trials. It may not mention every new treatment being studied. Information about ongoing clinical trials is available from the NCI Web site.

Targeted therapy

Targeted therapy is a treatment that uses drugs or other substances to find and attack specific cancer cells without harming normal cells. Several types of targeted therapy are being studied for osteosarcoma.

  • Angiogenesis inhibitor therapy: Drugs that stop cells from dividing and prevent the growth of new blood vessels that tumors need to grow.
  • Viral therapy: Use of a virus that has been changed in the laboratory to find and destroy cancer cells without harming healthy cells.
  • Monoclonal antibody therapy: A cancer treatment that uses antibodies made in the laboratory, from a single type of immune system cell. These antibodies can identify substances on cancer cells or normal substances that may help cancer cells grow. The antibodies attach to the substances and kill the cancer cells, block their growth, or keep them from spreading. Monoclonal antibodies are given by infusion. They may be used alone or to carry drugs, toxins, or radioactive material directly to cancer cells.
  • Kinase inhibitor therapy: A drug that blocks a protein needed for cancer cells to divide.

Patients may want to think about taking part in a clinical trial.

For some patients, taking part in a clinical trial may be the best treatment choice. Clinical trials are part of the cancer research process. Clinical trials are done to find out if new cancer treatments are safe and effective or better than the standard treatment.

Many of today's standard treatments for cancer are based on earlier clinical trials. Patients who take part in a clinical trial may receive the standard treatment or be among the first to receive a new treatment.

Patients who take part in clinical trials also help improve the way cancer will be treated in the future. Even when clinical trials do not lead to effective new treatments, they often answer important questions and help move research forward.

Patients can enter clinical trials before, during, or after starting their cancer treatment.

Some clinical trials only include patients who have not yet received treatment. Other trials test treatments for patients whose cancer has not gotten better. There are also clinical trials that test new ways to stop cancer from recurring (coming back) or reduce the side effects of cancer treatment.

Clinical trials are taking place in many parts of the country. See the Treatment Options section that follows for links to current treatment clinical trials. These have been retrieved from NCI's listing of clinical trials.

Follow-up tests may be needed.

Some of the tests that were done to diagnose the cancer or to find out the stage of the cancer may be repeated. Some tests will be repeated in order to see how well the treatment is working. Decisions about whether to continue, change, or stop treatment may be based on the results of these tests. This is sometimes called re-staging.

Some of the tests will continue to be done from time to time after treatment has ended. The results of these tests can show if your child's condition has changed or if the cancer has recurred (come back). These tests are sometimes called follow-up tests or check-ups.

Treatment Options for Osteosarcoma and Malignant Fibrous Histiocytoma of Bone

A link to a list of current clinical trials is included for each treatment section. For some types or stages of cancer, there may not be any trials listed. Check with your child's doctor for clinical trials that are not listed here but may be right for your child.

Localized Osteosarcoma and Malignant Fibrous Histiocytoma of Bone

Treatment may include the following:

  • Surgery. Combination chemotherapy is usually given before and after surgery.
  • Surgery followed by radiation therapy when the tumor cannot be completely removed by surgery.
  • A clinical trial of surgery and a new anticancer drug.

Check for U.S. clinical trials from NCI's list of cancer clinical trials that are now accepting patients with localized osteosarcoma and localized childhood malignant fibrous histiocytoma of bone. For more specific results, refine the search by using other search features, such as the location of the trial, the type of treatment, or the name of the drug. General information about clinical trials is available from the NCI Web site.

Metastatic Osteosarcoma and Malignant Fibrous Histiocytoma of Bone

Lung Metastasis

When osteosarcoma or malignant fibrous histiocytoma (MFH) spreads, it usually spreads to the lung. Treatment of osteosarcoma and MFH with lung metastasis may include the following:

  • Combination chemotherapy followed by surgery to remove the primary cancer and the cancer that has spread to the lung.

Bone Metastasis or Bone with Lung Metastasis

Osteosarcoma and malignant fibrous histiocytoma may spread to a distant bone and/or the lung. Treatment may include the following:

  • Combination chemotherapy followed by surgery to remove the primary tumor and the cancer that has spread to other parts of the body. More chemotherapy is given after surgery.
  • Surgery to remove the primary tumor followed by chemotherapy and surgery to remove cancer that has spread to other parts of the body.

Check for U.S. clinical trials from NCI's list of cancer clinical trials that are now accepting patients with metastatic osteosarcoma and metastatic childhood malignant fibrous histiocytoma of bone. For more specific results, refine the search by using other search features, such as the location of the trial, the type of treatment, or the name of the drug. General information about clinical trials is available from the NCI Web site.

Recurrent Osteosarcoma and Malignant Fibrous Histiocytoma of Bone

Treatment of recurrent osteosarcoma and malignant fibrous histiocytoma of bone may include the following:

  • Surgery to remove the tumor with or without chemotherapy.
  • Samarium with or without stem cell transplant using the patient's own stem cells, as palliative treatment to relieve pain and improve the quality of life.
  • A clinical trial of new types of treatment for patients whose cancer cannot be removed by surgery. These may include targeted therapy.

Check for U.S. clinical trials from NCI's list of cancer clinical trials that are now accepting patients with recurrent osteosarcoma and recurrent childhood malignant fibrous histiocytoma of bone. For more specific results, refine the search by using other search features, such as the location of the trial, the type of treatment, or the name of the drug. General information about clinical trials is available from the NCI Web site.

To Learn More About Osteosarcoma and Malignant Fibrous Histiocytoma of Bone

For more information from the National Cancer Institute about osteosarcoma and malignant fibrous histiocytoma of bone, see the following:

  • Bone Cancer Home Page
  • Computed Tomography (CT) Scans and Cancer
  • Drugs Approved for Bone Cancer
  • Understanding Cancer Series: Targeted Therapies (Advances in Targeted Therapies)
  • Targeted Cancer Therapies
  • Bone Cancer

For more childhood cancer information and other general cancer resources, see the following:

  • What You Need to Know About™ Cancer
  • Childhood Cancers
  • CureSearch for Children's Cancer
  • Late Effects of Treatment for Childhood Cancer
  • Adolescents and Young Adults with Cancer
  • Young People with Cancer: A Handbook for Parents
  • Care for Children and Adolescents with Cancer
  • Understanding Cancer Series: Cancer
  • Cancer Staging
  • Coping with Cancer: Supportive and Palliative Care
  • Questions to Ask Your Doctor About Cancer
  • Cancer Library
  • Information for Survivors/Caregivers/Advocates

Changes to This Summary (08 / 27 / 2013)

The PDQ cancer information summaries are reviewed regularly and updated as new information becomes available. This section describes the latest changes made to this summary as of the date above.

Editorial changes were made to this summary.

About This PDQ Summary

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Physician Data Query (PDQ) is the National Cancer Institute's (NCI's) comprehensive cancer information database. The PDQ database contains summaries of the latest published information on cancer prevention, detection, genetics, treatment, supportive care, and complementary and alternative medicine. Most summaries come in two versions. The health professional versions have detailed information written in technical language. The patient versions are written in easy-to-understand, nontechnical language. Both versions have cancer information that is accurate and up to date and most versions are also available in Spanish.

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Purpose of This Summary

This PDQ cancer information summary has current information about the treatment of osteosarcoma and malignant fibrous histiocytoma of bone. It is meant to inform and help patients, families, and caregivers. It does not give formal guidelines or recommendations for making decisions about health care.

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Editorial Boards write the PDQ cancer information summaries and keep them up to date. These Boards are made up of experts in cancer treatment and other specialties related to cancer. The summaries are reviewed regularly and changes are made when there is new information. The date on each summary ("Date Last Modified") is the date of the most recent change.

The information in this patient summary was taken from the health professional version, which is reviewed regularly and updated as needed, by the PDQ Pediatric Treatment Editorial Board.

Clinical Trial Information

A clinical trial is a study to answer a scientific question, such as whether one treatment is better than another. Trials are based on past studies and what has been learned in the laboratory. Each trial answers certain scientific questions in order to find new and better ways to help cancer patients. During treatment clinical trials, information is collected about the effects of a new treatment and how well it works. If a clinical trial shows that a new treatment is better than one currently being used, the new treatment may become "standard." Patients may want to think about taking part in a clinical trial. Some clinical trials are open only to patients who have not started treatment.

Clinical trials are listed in PDQ and can be found online at NCI's Web site. Many cancer doctors who take part in clinical trials are also listed in PDQ. For more information, call the Cancer Information Service 1-800-4-CANCER (1-800-422-6237).

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National Cancer Institute: PDQ® Osteosarcoma and Malignant Fibrous Histiocytoma of Bone Treatment. Bethesda, MD: National Cancer Institute. Date last modified <MM/DD/YYYY>. Available at: http://cancer.gov/cancertopics/pdq/treatment/osteosarcoma/Patient. Accessed <MM/DD/YYYY>.

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Last Revised: 2013-08-27


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