Dysplazja kręgowo-nasadowo-przynasadowa typu Mengera

A rare spondyloepimetaphyseal dysplasia characterized by severe short-limb short stature beginning prenatally, joint hypermobility, dental abnormalities, dysmorphic facial features (including hypertelorism, midface hypoplasia, macroglossia, and prognathism), and other skeletal anomalies (such as atlantoaxial subluxation causing compression of the spinal cord, kyphoscoliosis, hip dislocation, or rocker-bottom feet). Mild intellectual disability may also be present.