Breast cancer is cancer that forms in tissues of the breast, usually the ducts (tubes that carry milk to the nipple) and lobules (glands that make milk). It occurs in both men and women, although male breast cancer is rare.
After a breast cancer diagnosis, you'll be faced with a difficult and emotional decision: Do you choose complete removal of your breast (mastectomy) or removal of only the tumor (lumpectomy) followed by radiation therapy? The information contained in this guide is intended to help you make this important decision.
The anatomy of the human female breast contains various tissues and structures. One of the primary functions of the breast is milk production. Learn about breast ducts, muscles, and blood vessels in this slide show from the Mayo Clinic.