Orphanet: Primary hypertrophic osteoarthropathy

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Primary hypertrophic osteoarthropathy

Disease definition

Primary hypertrophic osteoarthropathy (PHO) is a genetically and clinically heterogeneous inherited disorder characterized by digital clubbing and osteoarthropathy, with variable features of pachydermia, delayed closure of the fontanels, and congenital heart disease. There are two types of PHO: pachydermoperiostosis and cranio-osteoarthropathy (see these terms).


Classification level: Group of disorders
  • Synonym(s):
    • Idiopathic hypertrophic osteoarthropathy
    • PHO
  • Prevalence: Unknown
  • Inheritance: Autosomal recessive 
  • Age of onset: Infancy, Neonatal
  • ICD-10: M89.4
  • OMIM: -
  • UMLS: C0029411
  • MeSH: D010004
  • GARD: -
  • MedDRA: -

Detailed information


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