Absent Breast: An absent breast may occur in both males and females. If only the nipple/areolar area complex is missing, this condition is referred to as athelia; if the entire breast is missing, this condition is referred to as amastia.
Reconstruction for amastia is delayed until a female has a fully developed breast on the other side. At this time, a tissue implant is placed in order to provide symmetry to the normal breast. In order to correct athelia, skin grafting may be performed to provide the color contrast of the areola; local tissue can be used to reconstruct the nipple.
Polythelia is a term that refers to an extra nipple/areolar complex. This extra tissue may be located at any point along an arc from the arm pit to the groin. Often these abnormalities are mistaken for moles (nevi). In unusual circumstances, these extra nipple/areolar complexes may be associated with breast tissue. Polymastia refers to a condition where an extra breast (usually with an extra nipple/areolar complex) as well as underlying extra breast tissue with closure.
Treatment for polythelia is excision of the extra nipple/areolar complex, with direct closure of the site. Treatment of polymastia includes excision of the extra skin, with nipple/areolar complex, as well as underlying extra breast tissue with closure.