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Internal Radiation Therapy

Internal radiation therapy, or brachytherapy, works by placing radioactive sources in or just next to a tumor.

  • During brachytherapy, a tube or balloon called a catheter will be inserted into the brain. The radiation will then be carried to the tumor using this catheter.
  • The radioactive source will then be left in place from several hours to several days to kill the tumor cells.
  • In some cases, the radiation is permanently placed directly into the tumor or the area where the tumor was before surgery.