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Breast cancer

Metastatic breast cancer

Metastatic breast cancer, also known as stage IV or advanced breast cancer, is breast cancer that has metastasized, or spread, to other organs in the body. Metastases from breast cancer may be found in lymph nodes in the armpit, or they can travel anywhere in the body. Common sites include distant organs like the lung, liver, bone and brain. Even after an original tumor is removed, microscopic tumor cells may remain in the body, which allows the cancer to return and spread.

Patients may initially be diagnosed with metastatic disease, or they may develop metastases months or years after their initial treatment. The risk of breast cancer returning and metastasizing varies from person to person and depends greatly on the biology of the tumor and the stage at the time of the original diagnosis.

Treatment options for metastatic breast cancer

Treatment for metastatic breast cancer includes many of the same treatments as other stages of breast cancer: 

 These treatments may be given alone or in combination. Learn more about treatments for breast cancer.