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Radiation is the use of high-energy rays which kill cancer cells.  There are several different types of radiation:

External Beam Radiation

  • Most common type of radiation.
  • Radiation comes from a machine outside of the body, and focuses on the area which has cancer.
  • Painless
  • Actual procedure time only takes a few minutes, set-up time usually takes longer.
  • Possible side effects
    • Swelling or heaviness of breasts.
    • Skin changes such as redness, blistering, and peeling of treated area.
    • Fatigue.


Brachytherapy (internal radiation)

  • Radioactive seeds are placed into a device which is then placed in the breast tissue where the cancer was detected.
  • Can be used with external beam radiation.

To learn more about brachytherapy, watch the video below:



American Cancer Society

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National Cancer Institite at the National Institues of Health