Breast Cancer pN1b TNM Finding v7

**Semantic type:** Finding

**Definition:** Breast cancer with metastases in internal mammary lymph nodes with micrometastases or macrometastases detected by sentinel lymph node biopsy but not clinically detected. "Not clinically detected" is defined by imaging studies (excluding lymphoscintigraphy) or by clinical examination. (from AJCC 7th Ed.)

**Synonyms:** - Breast Carcinoma pN1b TNM Finding v7