What is the approximate five-year survival rate for a patient diagnosed with stage 0 breast cancer?

Stage 0 breast cancer is classified as ductal carcinoma in situ (DCIS), which indicates that cancer cells are present but have not invaded surrounding breast tissue. Since the cancer has not spread beyond the ductal structures, it is typically considered non-invasive and highly treatable. As a result, the five-year survival rate for patients diagnosed with stage 0 breast cancer is approximately 100%. Patients at this stage often have successful outcomes due to early detection and effective treatment options, which can include surgery and radiation, depending on the individual case. The high survival rate reflects the favorable prognosis for this particular stage of breast cancer.