Radiological diagnosis of the constitutional disorders of bone. As easy as A, B, C?

Although many constitutional disorders of bone are individually rare, collectively they make up a large group of disorders. They are broadly classified into osteochondrodysplasias and dysostoses. Because of the rarity of some of these conditions, they can be difficult to diagnose. Members of the International Dysplasia Group meet regularly to update and clarify the nomenclature. The last meeting was in Oxford in 2001. This article attempts to highlight the differences between the osteochondrodysplasias and the dysostoses, and provides a systematic approach to their radiological diagnosis.