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  breast cancer


　　

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.



Breast anatomy; shows lobes, lobules, ducts, areola, nipple, fat, lymph nodes, and lymph vessels
Anatomy of the breast, showing lymph nodes and lymph vessels.