Breast Cancer Stage

Stage 0 Breast cancer is also known as Ductal Carcinoma In-Situ, or DCIS. This means that the cancer cells are filling the milk ducts, but have not broken through the lining or wall of the milk duct. This means that the cancer generally does not have the potential to spread to other areas of the body. DCIS can be quite extensive throughout the breast however and sometimes mastectomy is needed. In addition, DCIS can be harder to detect on mammogram, ultrasound, or MRI, and often the extent of disease is underestimated by imaging.