- A spectrum of protrusion abnormalities of the anterior chest wall
- Also known as pigeon chest
- Uncommon deformity of the chest wall, less common than pectus excavatum.
More frequent in whites
Uncommon in blacks and Asians.
Males affected 4 times more than females.
This deformity may occur either isolated or as part of a syndrome or conditions as scoliosis.
It has been found at birth but most frequently identified in mid childhood. The deformity worsens during the adolescent growth spurt.
It can be classified as either chondrogladiolar or chondromanubrial
Also known as chicken breast or keel chest
Protrusion of the middle and lower sternum
Also known as Pouter pigeon breast
Protrusion of the manubrium and upper sternum (less common)