External beam radiation for prostate cancer


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Definition

By Mayo Clinic staff

Living With Cancer

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External beam radiation for prostate cancer uses high-energy X-rays to kill cancer cells. During external beam radiation for prostate cancer, the high-energy beams are generated by a machine called a linear accelerator that aims the beams at your prostate gland.

External beam radiation for prostate cancer kills cancer cells by destroying the genetic material that controls how cells grow and divide. Healthy cells in the beam's path also are affected by external beam radiation therapy, resulting in side effects. The goal of external beam radiation for prostate cancer is to destroy the cancerous cells while sparing as much of the normal surrounding tissue as possible.

External beam radiation for prostate cancer is one of the standard treatment options to treat prostate cancer. It may also be used for men who have prostate cancer that comes back after surgery.

References
  1. External beam therapy (EBT). Radiological Society of North America. http://www.radiologyinfo.org/en/info.cfm?pg=ebt. Accessed March 4, 2013.
  2. DiBiase SJ, et al. External beam radiation therapy for localized prostate cancer. http://www.uptodate.com/home/. Accessed March 5, 2013.
  3. Cozzarini C. Low-dose-rate brachytherapy, radical prostatectomy, or external-beam radiation therapy for localised prostate carcinoma: The growing dilemma. European Urology. 2011;60:894.
  4. Prostate cancer. American Cancer Society. http://www.cancer.org/cancer/prostatecancer/detailedguide/index. Accessed March 4, 2013.
  5. Tanagho EA, et al. Smith's General Urology. 17th ed. New York, N.Y.: The McGraw-Hill Companies; 2008. http://www.accessmedicine.com/resourceTOC.aspx?resourceID=21. Accessed March 5, 2013.
  6. Radiation therapy. Prostate Cancer Foundation. http://www.pcf.org/site/c.leJRIROrEpH/b.5813857/k.AACD/Radiation_Therapy. htm. Accessed Dec. 8, 2010.
  7. Wong WW (expert opinion). Mayo Clinic, Rochester, Minn. March 6, 2013.
MY01632 May 18, 2013

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