Breast Cancer cN3 TNM Finding v8

**Semantic type:** Finding

**Definition:** Breast cancer with metastases in ipsilateral infraclavicular (level III axillary) lymph node(s) with or without level I, II axillary lymph node involvement; or in ipsilateral internal mammary lymph node(s) with level I, II axillary lymph node metastases; or metastases in ipsilateral supraclavicular lymph node(s) with or without axillary or internal mammary lymph node involvement. (from AJCC 8th Ed.)

**Synonyms:** - Breast Carcinoma cN3 TNM Finding v8