| A rare primary bone dysplasia characterized by upper limbs rhizomelia and other skeletal anomalies (for example short stature, dislocated hips, digitalization of the thumb with bifid distal phalanx), craniofacial features (for example microcephaly, large anterior fontanelle, fine and sparse scalp hair, depressed nasal bridge, high arched palate, micrognathia, short neck), congenital heart defects (for example pulmonary stenosis), delayed psychomotor development and mild flexion contractures of elbows. Radiologic evaluation may reveal flared epiphyses, platyspondyly and/or digital anomalies. |