Stage IIIA Breast Cancer AJCC v7

**Semantic type:** Neoplastic Process

**Definition:** 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 more than 50 mm in greatest dimension. N1: Metastasis to movable ipsilateral level I, II axillary lymph node(s). N2: Metastases in ipsilateral level I, II axillary lymph nodes that are clinically fixed or matted; or in clinically detected ipsilateral internal mammary nodes in the absence of clinically evident axillary lymph node metastases. M0: No clinical or radiographic evidence of distant metastasis. M0 includes M0(i+). (AJCC 7th Ed.)

**Synonyms:** - Breast Cancer Stage IIIA - Breast Carcinoma Stage IIIA - Stage IIIA Breast Cancer - Stage IIIA Breast Cancer - Stage IIIA Breast Carcinoma - stage IIIA breast cancer