NCI Dictionary of Cancer Terms

  • Resize font
  • Print
  • Email
  • Facebook
  • Twitter
  • Google+
  • Pinterest

The NCI Dictionary of Cancer Terms features 7,916 terms related to cancer and medicine.

Browse the dictionary by selecting a letter of the alphabet or by entering a cancer-related word or phrase in the search box.

simple mastectomy
(SIM-pul ma-STEK-toh-mee)
Surgery to remove the whole breast. Some of the lymph nodes under the arm may also be removed. Also called total mastectomy.