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    Metopic ridge

    A metopic ridge is an abnormal shape of the skull. The ridge can be seenon 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.

    Causes

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

    When to Contact a Medical Professional

    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 Office Visit

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

    Tests may include:

    • Head CT (maybe)
    • Skull x-ray

    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.

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    • Metopic ridge

      illustration

      • Metopic ridge

        illustration

      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. 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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