Source:http://linkedlifedata.com/resource/umls/id/C0278489
NCI: Stage III breast cancer is divided into stages IIIA, IIIB, and IIIC. In stage IIIA, (1) no tumor is found in the breast, but cancer is found in axillary (under the arm) lymph nodes that are attached to each other or to other structures, or cancer may be found in lymph nodes near the breastbone; or (2) the tumor is 2 centimeters or smaller and cancer has spread to axillary lymph nodes that are attached to each other or to other structures, or the cancer may have spread to lymph nodes near the breastbone; or (3) the tumor is larger than 2 centimeters but not larger than 5 centimeters and cancer has spread to axillary lymph nodes that are attached to each other or to other structures.,NCI: Stage IIIA includes: (T0, N2, M0); (T1, N2, M0); (T2, N2, M0); (T3, N1, M0); (T3, N2, M0). T0: No evidence of primary tumor. T1: Tumor 20 mm or less in greatest dimension. T1 includes T1mi. T1mi: Tumor 1 mm or less in greatest dimension. T2: Tumor more than 20 mm but not more than 50 mm in greatest dimension. T3: Tumor mo