The pathology report answers questions about a breast abnormality Breast tissue can develop abnormalities that are sometimes cancerous. Usually breast cancer begins either in the cells of the lobules, which are milk-producing glands, or the ducts, the passages that drain milk from the lobules to the nipple. Breast cancers have many characteristics that help determine the best treatment. is the breast abnormality a cancer? A lump or spot in the breast can be made of normal cells or cancer cells. Cancer cells are cells that grow in an uncontrolled way. They may stay in the place where they started to grow, or they.
