There are two main types of chest wall deformity: pectus carinatum, or pigeon chest, and pectus excavatum, or funnel chest. The former pushes out; the latter sinks in. Though there can be a genetic ...

Pectus carinatum, also called a protruding sternum or pigeon chest, is a rare deformity in children. It causes the chest and ribs to stick out further than they should. Only one or two children out of ...

MONTREAL — Mackenzie Cave, a bright 17-year-old who loves sports and science, developed a bony protrusion in his chest just after he turned 10. The protrusion — a deformity that affects one out of ...