metastatic breast cancer

Metastatic breast cancer, also referred to as advanced breast cancer, secondary tumors, secondaries or stage IV breast cancer, is a stage of breast cancer in which malignant cells arising from breast tissue have spread to distant sites beyond the regional lymph nodes. Stage IV is the most advanced stage of breast cancer. Metastatic breast cancer cannot be cured, but it can be treated to enable women to live longer and to lessen symptoms.