THE NIPPLE

THE NIPPLE

Absence of the nipple is rare and is usually associated with amazia (congenital absence of the breast). Supernumerary nipples are not uncommon and occur along a line extend ing from the anterior fold of the axilla to the upper chest ( Figure 58.16 ). In the human embryo the milk ridge extends from the axilla to the upper chest only and not to the groin. Rarely , there is duplication of the nipple on a normal areola.