Breast cancer is one of the most common cancers among women in the United States. Data suggests that more than 180,000 American women will be diagnosed with this cancer in 2009. There are various risk factors including the female gender, heredity, genetic factors, aging and idiopathic causes.What is Breast Cancer?
The short answer to the question is – a tumor in the breast. In case of a non-invasive breast cancer, the tumor is localized and not spread from its origin of growth. This is referred to as “Carcinoma in Situ”. The tumor can be confined to the ducts (ductal carcinoma in situ) or confined to the lobules (lobular carcinoma in situ). “Duct” and “Lobules” refer to the milk duct and the milk producing glands respectively in the mammary glands. Most breast cancers start in the duct and spread to other tissues. Lobular cancer or carcinoma is not true cancer by itself, but has the potential to cause cancer later.
