Stage IIIC Breast Cancer AJCC v6

**Semantic type:** Neoplastic Process

**Definition:** Stage IIIC Breast Cancer was added in the 6th Edition AJCC Staging Manual, on the basis of metastasis to the infraclavicular lymph nodes (N3) plus any T, M0.

**Synonyms:** - Stage IIIC Breast Cancer - Stage IIIC Breast Carcinoma AJCC v6