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Exposing tumors to ionizing radiation kills them faster than it kills nearby healthy tissue. If you can focus or otherwise concentrate the radiation on the tumor the effect is even stronger.

The reason for this effect is tumors generally grow much faster than healthy tissue, and ionizing radiation damages growing tissue much more significantly than tissue that is not actively growing. This damage should kill it.

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Q: How do radiation therapy work?
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Related questions

What is internal radiation therapy also called?

It is sometimes called radiation therapy, radiation therapy, cobalt therapy, electron beam therapy, or irradiation


How is radiation therapy administered?

Radiation therapy is delivered via external radiation or via internal radiation therapy (the implantation/injection of radioactive substances).


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Radiation Therapy is not transferred to clothing.


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Interstitial radiation therapy places the sources of radiation directly into the tumor and surrounding tissue.


Is Radiation therapy a local treatment?

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What happens in external radiation therapy?

In external radiation therapy a beam of radiation is directed from outside the body at the cancer


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Radiation Therapy dose is measured in Gray (abbrev. Gy).


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