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Craniofacial structure in Marfan syndrome: a cephalometric study
Peter De Coster1, Guy De Pauw, Luc Martens
1Department of Paediatric Dentistry, Center for Special Care, Paecamed Research, University of Ghent, B-9000 Ghent, Belgium.
American Journal of Medical Genetics. Part A
|November 4, 2004
Summary
Marfan syndrome (MFS) is a connective tissue disorder affecting craniofacial structures. This study found MFS patients exhibit significant differences in jaw and palatal dimensions compared to population norms.
Area of Science:
- Genetics and Molecular Biology
- Medical Genetics
- Craniofacial Biology
Background:
- Marfan syndrome (MFS) is an autosomal dominant connective tissue disorder caused by FBN1 gene mutations.
- It affects multiple systems, including skeletal, ocular, and cardiovascular, with less specific signs like highly arched palate and retrognathia.
- Craniofacial characteristics in MFS require further investigation for diagnostic specificity.
Purpose of the Study:
- To compare cephalometric variables in Marfan syndrome patients with population norms.
- To assess differences in palatal vault dimensions between adult MFS patients and controls.
- To investigate correlations between craniofacial features and MFS.
Main Methods:
- Cephalometric analysis of lateral cranial radiographs from 26 Marfan syndrome patients.
- Comparison of MFS patient data with age- and sex-matched population norms.
- Assessment of palatal vault dimensions in 17 adult MFS patients and 32 controls.
Main Results:
- Significant differences were observed in cranial base, maxillary, and mandibular structures in MFS patients compared to norms.
- MFS patients showed significantly larger palatal height and length, correlated with maxillo-alveolar height.
- A strong correlation was found between maxillary/mandibular retrognathia, long face, highly arched palate, and MFS.
Conclusions:
- Craniofacial morphology in Marfan syndrome deviates significantly from population norms, particularly in the palate and jaw relationships.
- Findings challenge some previous reports, suggesting potential biases in earlier studies.
- A combination of genetic and environmental factors likely influences craniofacial development in MFS.