Mesomelic dysplasia with short ulna, long fibula, brachymetacarpy, and micrognathia. Clinical and radiological differential diagnostic features.

A girl with a "new" variant of mesomelic dysplasia is reported. The disorder is characterized by mesomelic brachymely, especially of the arms, a short ulna, relatively long fibula, brachymetacarpy, minor symmetrical changes at the hands, developmental arrest of the spine, contractures, and micrognathia. The clinical and radiological differential diagnostic features are discussed.