Source:http://linkedlifedata.com/resource/umls/id/C0278486
NCI: Stage II breast cancer is divided into stages IIA and IIB. In stage IIA, (1) no tumor is found in the breast, but cancer is found in the axillary (under the arm) lymph nodes; or (2) the tumor is 2 centimeters or smaller and has spread to the axillary lymph nodes; or (3) the tumor is larger than 2 centimeters but not larger than 5 centimeters and has not spread to the axillary lymph nodes. In stage IIB, the tumor is (1) larger than 2 centimeters but not larger than 5 centimeters and has spread to the axillary lymph nodes; or (2) larger than 5 centimeters but has not spread to the axillary lymph nodes.,NCI: Stage II includes: IIA: (T0, N1, M0); (T1, N1, M0); (T2, N0, M0) and IIB: (T2, N1, M0); (T3, N0, M0). T0: No evidence of primary tumor. T1: Tumor 2.0 cm or less in greatest dimension. T1 includes T1mi. T1mi: Tumor 1 mm or less in greatest dimension. T2: Tumor more than 2.0 cm but not more than 5.0 cm in greatest dimension. T3: Tumor more than 5.0 cm in greatest dimension. N1: Metastasis to movable ipsil