Primary hypertrophic osteoarthropathy

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Primary hypertrophic osteoarthropathy

ORPHA:248095Clinical group

Also called Idiopathic hypertrophic osteoarthropathy · PHO

What it is

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.

Key facts

Age of onset
Infancy, Neonatal
Inheritance
Autosomal recessive
Classified as
Clinical group

Genes reported in subtypes

HPGDSLCO2A1

Orphanet records these genes on 2 more specific entries under this disorder, not on this entry itself:

A well-studied disease is usually split into subtypes, and the gene is curated on whichever one the evidence belongs to. Open a subtype to see which gene goes with it.

Cross-references

MESH D010004MONDO 0016620MONDO 16620UMLS C0029411

Orphadata Science: Free access data from Orphanet. © INSERM 1999. Data version 2026-06-23. Available under CC BY 4.0. This is a reference, not medical advice.

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