NCI Dictionary of Cancer Terms
The NCI Dictionary of Cancer Terms features 7,779 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.
- listen (ma-STEK-toh-mee)
- Surgery to remove part or all of the breast. There are different types of mastectomy that differ in the amount of tissue and lymph nodes removed.