Breast and nipple skin is commonly affected by various inflammatory and neo
plastic processes. Despite this fact, many physicians are unaware of the sp
ectrum of diseases that can involve this area. Because breast and nipple sk
in represents a cosmetically, sexually, and functionally important entity t
o most patients, awareness of these disease entities is invaluable. This ar
ticle reviews the normal anatomy of the breast, cutaneous manifestations of
neoplastic processes that can present in these areas, and common inflammat
ory diseases of the breast and nipple skin.