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Metopic ridge

Definition

A metopic ridge is an abnormal shape of the skull. The ridge can be seen on the forehead.

Considerations

The skull of an infant is made up of bony plates that allow for growth of the skull. The place where these plates connect are called sutures or suture lines. They do not close up until the second or third year of life.

Metopic ridge occurs when the two bony plates in the front skull join together too early.

The metopic suture remains unclosed throughout life in 1 in 10 people.

Common Causes

A birth defect called craniosynostosis is a common cause of metopic ridge.

Call your health care provider if

Call your health care provider if you notice a ridge along your infant's forehead or a ridge forming on the skull.

What to expect at your health care provider's office

The health care provider will perform a physical exam and ask questions about the child's medical history.

Tests may include:

No treatment or surgery is needed for a metopic ridge.

References

Kaney PM. Congenital malformations of the skull and meninges. Otolaryngol Clin N Am. 2007;40:9-26.

Gunny RS, Chong WK. Paediatric neuroradiology. In: Adam A, Dixon AK, eds. Grainger & Allison's Diagnostic Radiology. 5th ed. New York, NY: Churchill Livingston; 2008:chap 70.

Kinsman SL, Johnston MV. Craniosynostosis, In: Kliegman RM, Behrman RE, Jenson HB, Stanton BF, eds. Nelson Textbook of Pediatrics. 19th ed. Philadelphia, Pa: Saunders Elsevier; 2011:chap 585.12.


Review Date: 10/22/2011
Reviewed By: Linda J. Vorvick, MD, Medical Director, MEDEX Northwest Division of Physician Assistant Studies, University of Washington, School of Medicine. Also reviewed by David Zieve, MD, MHA, Medical Director, A.D.A.M., Inc.
The information provided herein should not be used during any medical emergency or for the diagnosis or treatment of any medical condition. A licensed medical professional should be consulted for diagnosis and treatment of any and all medical conditions. Call 911 for all medical emergencies. Links to other sites are provided for information only -- they do not constitute endorsements of those other sites. © 1997- A.D.A.M., Inc. Any duplication or distribution of the information contained herein is strictly prohibited.
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