Studies on the best use of genetic testing for breast cancer mutations continue. Scientists are exploring how common gene variations (small changes in genes that are not as significant as mutations) may affect breast cancer risk. Early stage breast cancer can be cured in most women. … However, it sounds like you are in a very early stage of the disease and you should have an extremely good chance of being cured. DCIS stands for ductal carcinoma in-situ, which means cancerous cells have started to grow within one of the milk-ducts of your breast. According to the National Cancer Institute, an estimated 27 percent of people in the United States live at least five years after being diagnosed with stage 4 breast cancer. Many factors can affect your chances of long-term survival.