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Pachydermoperiostosis in childhood
Insights
This study details a rare autosomal recessive inheritance of pachydermoperiostosis (idiopathic hypertrophic osteoarthropathy) in a multi-generational family. The findings highlight the condition
Area of Science:
- Genetics and rare diseases research.
- Clinical manifestations of skeletal dysplasias.
Background:
- Pachydermoperiostosis (idiopathic hypertrophic osteoarthropathy) is a rare genetic disorder.
- The condition typically presents with digital clubbing, arthritis, and skin thickening.
Observation:
- A family spanning four generations exhibited pachydermoperiostosis with 10 affected members.
- Four affected individuals were children, a rare presentation for this condition.
- Intermarriage within the family suggested autosomal recessive inheritance.
Findings:
- Autosomal recessive inheritance pattern confirmed in the affected family.
- Homozygosity for the pachydermoperiostosis gene was investigated.
- One homozygous individual presented with cleft palate and congenital heart defect, potentially linked to homozygosity.
Implications:
- Understanding the genetic basis of pachydermoperiostosis, particularly autosomal recessive forms.
- Investigating potential genotype-phenotype correlations, including rare childhood presentations and homozygous manifestations.
- Informing genetic counseling and diagnostic approaches for families with suspected pachydermoperiostosis.
Abstract:
We report a family with pachydermoperiostosis (idiopathic hypertrophic osteoarthropathy) spanning four generations with 10 affected individuals, four of whom are children although pachydermoperiostosis is rare in childhood. In this family, with intermarriage, the inheritance is autosomal recessive and it is possible that there are individuals who are homozygous for the pachydermoperiostosis gene. These individuals do not appear to be more severely affected, although one of them had a cleft palate and congenital heart defect which may be a manifestation of being homozygous.