01/14/2016 04:36 PM EST
Related MedlinePlus Page: Cancer
Laser therapy uses a very narrow, focused beam of light to shrink or destroy cancer cells. It can be used to cut out tumors without damaging other tissue.
Laser therapy is often given through a thin, lighted tube that is put inside the body. Thin fibers at the end of the tube direct the light at the cancer cells. Lasers are also used on the skin.
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