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Regressive spondylometaphyseal dysplasia

Disease definition

Regressive spondylometaphyseal dysplasia is a rare, primary bone dysplasia characterized by mild short stature, rhizomelic shortening of the arms and legs, bowing of long bones with widened and irregular metaphyses, thoracolumbar kyphosis, and metacarpal shortening. A marked improvement of the radiologic skeletal features is typical. Pelger-Huet anomaly (i.e. dumbbell shape bilobed nuclei of neutrophils) is a characteristic hematological feature of this disease.


  • Synonym(s): -
  • Prevalence: <1 / 1 000 000
  • Inheritance: Autosomal recessive 
  • Age of onset: Neonatal
  • ICD-10: Q77.8
  • OMIM: 618019
  • UMLS: -
  • MeSH: -
  • GARD: -
  • MedDRA: -

Additional information

Further information on this disease

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