therapy is a treatment for cancer that uses high-energy X-rays. A machine
directs the rays of energy to the area of cancer, with a goal to kill or shrink
When might radiation therapy be used for a sarcoma?
Most often, bone patients will not receive radiation therapy
as a major part of their treatment. Most sarcomas are not easily affected by
radiation, and high doses are needed to see results. Typically, radiation is
used when a tumor cannot be completely removed by surgery.
Types of radiation therapy
- External radiation. This is also known as external
beam therapy (EBRT), the most common treatment for sarcoma. This treatment
sends high levels of radiation directly to cancer cells. Since radiation is
used to kill cancer cells and to shrink tumors, special shields may be used to
protect the tissue surrounding the treated area.
- Brachytherapy. This
treatment places small pellets of radioactive material near the sarcoma. For
small-tissue sarcoma, these pellets are placed during surgery using thin tubes,
also known as catheters, and release radiation to fight the sarcoma. Brachytherapy may be the only form of
radiation therapy available to be partnered with external beam radiation.