Metastatic Breast Cancer is stage 4 breast cancer that has spread to other parts of the body such as the lungs, liver, bones or brain. The spreading of the cancer metastasizes in the body when cancer cells either invade nearby healthy cells, penetrate into the circulatory or lymph system, migrate through circulation, lodge in capillaries, or when new small tumors grow.
African American women are less likely to develop breast cancer, but when they do, they are more likely to be diagnosed with a late-stage breast cancer such as metastatic breast cancer and have a decreased survival rate compared to white women. However, a new study finds the number of U.S. women living [longer] with the most advanced stage of breast cancer has been rising since the 1990s.
Researchers say that treatment advances, allowing more breast cancer patients to survive longer, are one likely reason. The general aging of the U.S. population is another.
Right now, the study estimated, close to 155,000 U.S. women are