NCI Dictionary of Cancer Terms
The NCI Dictionary of Cancer Terms features 7,881 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.
- stage IA breast cancer
- listen (... brest KAN-ser)
Stage I is divided into stages IA and IB. In stage IA, the tumor is 2 centimeters or smaller. Cancer has not spread outside the breast.