Logo

Cancer is a disease characterized by the uncontrolled growth of abnormal cells. Breast cancer is any type of malignant (cancerous) growth in the breast tissue. Breast cancer is the most common cancer in women and affects approximately one out of every eight women in the U.S.

There are several types of breast cancer, but the common types are ductal carcinoma (occurring in 85 - 90 percent of the cases) and lobular carcinoma (occurring in about eight percent of the cases).

Ductal carcinoma arises in the ducts (the passageway which carries milk from the milk-producing lobules to the nipple). Lobular carcinoma arises in the lobules (part of the lobe which ends in dozens of tiny bulbs that can produce milk).