s the most common type of infiltrating breast cancer. Myself and other researchers are working hard to not only find breast cancer at early stages; we are working to prevent it. A lot of this information is included in my book, Find and Stop Breast Cancer. It begins in the lining of the milk ducts (thin tubes that carry milk from the lobules of the breast to the nipple) and spreads outside the ducts to surrounding normal tissue. Infiltrating ductal carcinoma can also spread through the blood and lymph systems to other parts of the body, it is usually called invasive ductal carcinoma.