<unk>  is a structural deformity of the anterior thoracic wall in which the sternum and rib cage are shaped abnormally. This produces a caved-in or sunken appearance of the chest. It can either be present at birth or develop after puberty.<unk>  can impair cardiac and respiratory function and cause pain in the chest and back. People with the condition may experience severe negative psychosocial effects and avoid activities that expose the chest.
Pectus excavatum
Pectus carinatum
Pes cavus
Pediculosis pubis
Morsicatio buccarum
Protrusio acetabuli
Subungual hematoma
Pediculosis corporis