Persistent Metopic Suture: Incidence and Clinical Correlates in a Large Southeast Asian Population
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View abstract on PubMed
Summary
This summary is machine-generated.Persistent metopic suture occurs in about 3% of the Thai population. This finding is linked to delayed frontal sinus development and delayed anterior fontanel closure in children.
Area Of Science
- Craniofacial Development
- Pediatric Radiology
- Anatomy
Background
- The metopic suture typically fuses by age two.
- Persistence beyond this age (metopism) is uncommon.
- Metopism can mimic fractures or indicate craniofacial development disorders.
Purpose Of The Study
- To determine the incidence of persistent metopic sutures in a Thai population.
- To identify demographic and clinical factors associated with metopism.
- To explore the relationship between metopism and other developmental factors.
Main Methods
- Retrospective analysis of 1315 cranial CT scans from patients aged 24 months and older.
- Classification of metopic patency using the Lottering system.
- Data collection on age, sex, cephalic index, imaging indication, developmental delay, and anterior fontanel closure.
Main Results
- A 3.3% incidence of persistent metopic suture was observed (44/1315 patients).
- No significant differences in sex, age, cephalic index, or imaging indications were found.
- Delayed frontal sinus development (11.4% vs 2.7%) and delayed anterior fontanel closure (4.5% vs 0.4%) were significantly more prevalent in patients with metopism.
Conclusions
- The incidence of persistent metopic suture in contemporary Thai individuals is approximately 3%.
- Metopism showed no sex or age predilection in this cohort.
- Persistence of the metopic suture is strongly associated with delayed frontal sinus development and delayed anterior fontanel ossification.
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