NCI Dictionary of Cancer Terms
The NCI Dictionary of Cancer Terms features 7,804 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.
- preventive mastectomy
- listen (pree-VEN-tiv ma-STEK-toh-mee)
Surgery to reduce the risk of developing breast cancer by removing one or both breasts before disease develops. Also called prophylactic mastectomy.