Breast Cancer cN3 TNM Finding v6

**Semantic type:** Finding

**Definition:** Breast cancer with metastasis in ipsilateral infraclavicular lymph node(s) with or without axillary lymph node involvement, or in clinically apparent ipsilateral internal mammary lymph node(s) and in the presence of clinically evident axillary lymph node metastasis; or metastasis in ipsilateral supraclavicular lymph node(s) with or without axillary or internal mammary lymph node involvement. (from AJCC 6th Ed.)