Metastatic, or stage 4, breast cancer means the cancer has spread to other parts of the body. Find out about prognosis and life expectancy at.
Secondary breast cancer occurs when breast cancer cells spread from the Life expectancy is difficult to predict as each person's case is different and no two.
While treatable, metastatic breast cancer (MBC) cannot be cured. The five-year survival rate for stage 4 breast cancer is 22 percent; median survival is three.