Metastatic breast cancer (also called stage IV or advanced breast cancer) is not a specific type of breast cancer, but rather the most advanced stage of breast cancer.
Metastatic breast cancer is breast cancer that has spread beyond the breast to other organs in the body (most often the bones, lungs, liver or brain).
Although metastatic breast cancer has spread to another part of the body, it’s considered and treated as breast cancer.
For example, breast cancer that has spread to the bones is still breast cancer (not bone cancer) and is treated with breast cancer drugs, rather than treatments for a cancer that began in the bones.
It’s estimated that at least 154,000 people in the U.S. have metastatic breast cancer . Some women have metastatic breast cancer when they are first diagnosed (called de novo metastatic breast cancer). However, this isn’t common in the U.S. (6 percent of diagnoses) [13-14].
More commonly, metastatic breast cancer arises months or years after a person has completed treatment for early or locally advanced (stage I, II or III) breast cancer. This is sometimes called a distant recurrence.
Learn more about breast cancer staging.
Learn more about breast cancer recurrence.
Although metastatic breast cancer cannot be cured, this doesn’t mean it can’t be treated.
Treatment of metastatic breast cancer focuses on length and quality of life.
Treatment is guided by many factors, including:
Learn more about treatment for metastatic breast cancer.
Learn more about quality of life.
Learn more about support groups and other sources of assistance and support.
Survival for metastatic breast cancer varies greatly from person to person.
Of the women who have metastatic breast cancer in the U.S. today, it’s estimated that 34 percent have had metastatic cancer for at least 5 years . So, they’ve lived at least 5 years since being diagnosed with metastatic breast cancer. Modern treatments continue to improve survival for women diagnosed today. In fact, some women may live 10 or more years beyond diagnosis .
SUSAN G. KOMEN® SUPPORT RESOURCES
*Please note, the information provided within Komen Perspectives articles is only current as of the date of posting. Therefore, some information may be out of date at this time.
2016 Research Fast Facts
Metastatic Breast Cancer
Facts for Life: Metastatic Breast Cancer
Metasatic Breast Cancer
Questions to Ask Your Doctor, Metastatic Breast Cancer
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