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08:03
Midface Hypoplasia and Cranial Base Morphology in Syndromic Craniosynostosis: A Comparative Analysis Study Using a Predictive Regression Model
Published on: November 4, 2025
Familial odontoid hypoplasia.
Cathy A Stevens1, Richard G Pearce, Edward M Burton
1Department of Pediatrics, University of Tennessee College of Medicine, Chattanooga, Tennessee, USA. cathy.stevens@erlanger.org
American Journal of Medical Genetics. Part A
|May 19, 2009
Summary
Odontoid hypoplasia, a rare developmental abnormality, can cause serious issues after head trauma. This study identifies a potential genetic link, suggesting autosomal dominant inheritance in a family with four affected members.
Area of Science:
- Medical Genetics
- Developmental Biology
- Orthopedics
Background:
- Odontoid hypoplasia is a congenital anomaly of the dens of the axis.
- It is typically asymptomatic but can lead to significant neurological sequelae, especially after trauma.
Observation:
- A family with four members exhibiting odontoid hypoplasia was identified.
- This presentation deviates from the generally accepted non-familial nature of the condition.
Findings:
- The pattern of inheritance in the observed family suggests an autosomal dominant mode.
- This challenges the previous understanding of odontoid hypoplasia's etiology.
Implications:
- Genetic counseling and screening of family members are crucial for identifying at-risk individuals.
- Understanding the genetic basis can inform future diagnostic and therapeutic strategies for odontoid hypoplasia.
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