"Breast cancer is cancer arising in breast tissue. Cancer is simply a group of abnormal cells that have abnormal growth patterns. Early breast cancer has no symptoms. It is usually not painful. Most breast cancer is discovered before symptoms are present, either by finding an abnormality on mammography or feeling a breast lump."
See the complete A-Z list of all the cancer related information or browse the current list of select resources.
Cancer Related Resources
Cancer Images and Slideshows
Cancer A-Z List: Complete Listing of Cancer Related Information