Metopic ridge
Definition
A metopic ridge is an abnormal shape of the skull. The ridge can be seenĀ on the forehead.
Overview & Considerations
A metopic ridge occurs when the two halves of the frontal bones of the skull join together too soon. The metopic suture normally begins to close in the second year of life. It is usually completely closed during the third year. However, it remains unclosed throughout life in 10% of the population.
Common Causes
Congenital craniosynostosis (particularly trigonocephaly) is a common cause of metopic ridge.
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