A "bird chest," also known as pigeon chest, is a descriptive term for a chest deformity called pectus carinatum.
Understanding Pectus Carinatum (Bird Chest)
Pectus carinatum is characterized by an outward protrusion of the sternum, or breastbone. This condition is often referred to as "bird chest" or "pigeon chest" due to the way the breastbone sticks out, resembling the chest of a bird. The condition is caused by abnormal growth of the cartilage connecting the ribs and sternum.
Key Features of Pectus Carinatum
Here are some key features of pectus carinatum:
- Outward Protrusion: The most distinguishing feature is the sternum projecting outwards.
- Cartilage Growth: This protrusion is due to irregular growth of cartilage on the ribs and sternum.
- Appearance: The chest has a distinct, bird-like appearance due to the breastbone's projection.
- Alternative Names: It's also commonly known as "pigeon chest."
Why is it Called Bird Chest?
The name "bird chest" or "pigeon chest" is derived from the way the sternum projects outward, which is similar to the shape of a bird's chest.
Summary
In summary, "bird chest" is a layman's term for the medical condition pectus carinatum, which involves the outward protrusion of the sternum due to irregular cartilage growth.