Breast cancer (breast) stage IIIB. Definition

Medical Definition: Breast cancer (breast) stage IIIB

Breast cancer (breast) in Stage III is divided into stages IIIA, IIIB and IIIC. In stage IIIB, the tumor may be any size and cancer: (1) has spread to the chest wall or skin of the breast, and (2) may have spread to axillary lymph nodes that may be attached to each other or other structures, or cancer may have spread to lymph nodes near the breastbone.

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