How is DCIS different from invasive breast cancer?
The term “breast cancer” describes a whole group of cancers that occur in the breast. DCIS is noninvasive, meaning that it does not spread from the breast ducts to other parts of the breast or body. Invasive breast cancers can spread to the lymph nodes or other areas of the body. You can reduce your risk of getting the more serious, invasive breast cancer by getting the proper treatment for DCIS.