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In some cases, your doctor may recommend brachytherapy. Also called internal radiation, brachytherapy involves placing radioactive material into a tumor or its surrounding tissue.

  • During bronchoscopy, one or two thin plastic tubes called catheters will be placed down your nose and into the airways of the lung.
  • The tube or tubes are then connected to a brachytherapy machine. This holds the radioactive source, which is in the form of a ribbon with radioactive seeds. Your doctor slides the ribbon into the tube in your lung so the seeds are next to the tumor.
  • The ribbon will be left in place from a few minutes to a few days.