Pigeon chest. That is pigeon chest known as pectins carinatin.
Pigeon. Pectus carinatum is the technical name given to pigeon chested (sternum and ribs more prominent).
Bracing for pectus. First off you need a medical evaluation, by a doctor familiar with pectus deformity. If you do in fact have a pectus carinatum deformity, it can be corrected withour the need for surgery. Read more...