Craniosynostosis in X-linked hypophosphataemic rickets

Area of Science:

• Pediatric Endocrinology
• Skeletal Dysplasias
• Medical Genetics

Background:

• X-linked hypophosphataemic rickets (XLH) is a genetic disorder characterized by phosphate wasting, leading to rickets.
• Craniosynostosis, the premature fusion of skull sutures, can cause significant head shape abnormalities and developmental issues.
• The association between XLH and craniosynostosis requires further investigation to understand underlying mechanisms and clinical significance.

Observation:

• This report details three pediatric cases of craniosynostosis occurring in patients diagnosed with X-linked hypophosphataemic rickets.
• A review of existing literature indicates a potential increased prevalence of craniosynostosis among individuals with XLH.
• Preliminary observations suggest a possible higher incidence of craniosynostosis in male patients with XLH compared to females.

Findings:

• Craniosynostosis appears to be a relatively common complication in patients with X-linked hypophosphataemic rickets.
• The study highlights a potential sex-based disparity, with males potentially being at greater risk for developing craniosynostosis in the context of XLH.
• These findings underscore the importance of recognizing craniosynostosis as a potential comorbidity in XLH.

Implications:

• Radiological screening for craniosynostosis should be considered for all patients diagnosed with X-linked hypophosphataemic rickets.
• Early detection of craniosynostosis in XLH patients can facilitate timely intervention and management, potentially improving outcomes.
• Further research is warranted to elucidate the pathogenic links between XLH and craniosynostosis and to confirm the observed sex predilection.