Español
Questions About Cancer? 1-800-4-CANCER
  • Print
  • Facebook
  • Twitter
  • Google+
  • Pinterest

NCI Dictionary of Cancer Terms


18F-EF5   

  A substance that is being studied in positron emission tomography (PET) imaging to detect tumor hypoxia (a low level of oxygen in the tumor).This may help predict how the tumor will respond to treatment. It belongs to the family of drugs called radiopharmaceuticals. Also called fluorine F 18 EF5.