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Definition

A rare skeletal dysplasia with characteristic dysmorphic and radiographic findings, as well as early developmental delay, primarily involving speech, with eventual normal cognition. Clinical findings include marked short stature, prominent forehead with an enlarged anterior fontanel, prominent eyes with cataracts, narrow nasal bridge with a convex nasal ridge, micrognathia, clubfoot, brachydactyly, and short distal phalanges of fingers. Radiographic changes include platyspondyly, irregular end plates of vertebral bodies, and hypoplasia of the odontoid process with cervical instability in the spine, coxa valga, overtubulation, metaphyseal flaring and megaepiphyses in the long bones, while the hands and feet exhibit short phalanges, metacarpals and metatarsals, cone-shaped epiphyses of phalanges, and accessory ossification centers of metacarpals and metatarsals.

Acronym

SWILS

Synonyms

Microcephalic osteodysplastic dysplasia

Keywords

Dwarfism

 
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