9) Pectus Carnitatum Breasts

Pectus carinatum congenital chest deformity (pigeon chest) with ptosis: This isn't exactly a breast shape, per se, but rather a deformity or divergence of the chest. The ribs usually protrude as can the sternum. Sometimes the ribs stick out much further than the sternum causing lack of self esteem or self consciousness of the breasts. Breast implants can give the illusion of a normal chest.