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What is breast cancer?
Breast cancer is a type of cancer where cells in the breast tissue divide and grow without the usual controls on cell death and cell division.
What is DCIS?
Ductal carcinoma in situ (DCIS) are precancer cells found in the ducts of the breast. These ducts carry milk from the lobules (where it is made) to the nipple of the breast. DCIS is pre-malignant (not yet cancer), so if it is left untreated or is not treated properly, it can develop into invasive breast cancer. However, DCIS is highly cu | 
