Definition

Osteosarcoma is a common form of bone cancer. It can spread to other parts of the body.

Causes

The cause is not known. It may be due to changes in genes.

Risk Factors

It is more common in boys 10-19 years old.

Here are some factors that may raise your risk:

• Genetic problems, such as retinoblastoma and Li-Fraumeni syndrome
• Past radiation therapy

Symptoms

Symptoms are usually in the upper and lower long bones and pelvis. They are:

• Bone pain that may worsen with activity
• Swelling
• A large lump

Diagnosis

You will be asked about your child’s symptoms and health history. A physical exam will be done.

Pictures may be taken of your child's body. This can be done with:

• X-ray
• MRI scan
• CT scan
• Bone scan

A biopsy of the site can confirm the diagnosis.

Treatment

When cancer is found, your child will be referred to a team that focuses on cancer in children. The doctor will do staging tests to find out if the cancer has spread. Treatment depends on the stage and site of the cancer. Talk with the doctor and healthcare team about the best plan for your child.

Your child may have:

Radiation

With this therapy, radiation is aimed at the tumor to kill the cancer cells.

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Prevention

There are no current methods to prevent osteosarcoma.