What is Metastatic Breast Cancer?
Metastatic Breast Cancer (MBC), also known as stage IV or advanced breast cancer, is breast cancer that has metastasized, or spread, to other organs in the body. No matter where the cancer spreads, it's still called "breast cancer." For example, breast cancer that has spread to your lungs is called "breast cancer," not "lung cancer." Your doctor will still treat it like breast cancer. JAB will contribute some of the funds it raises to support MBC research.