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Frontal bossing

Frontal bossing is an unusually prominent forehead. It is sometimes associated with a heavier than normal brow ridge.

Considerations

Frontal bossing is seen only in a few rare syndromes, including acromegaly, a long-term (chronic) disorder caused by too much growth hormone, which leads to enlargement of the bones of the face, jaw, hands, feet, and skull.

Causes

Causes include:

Home Care

There is no home care needed for frontal bossing. Home care for disorders associated with frontal bossing varies with the specific disorder.

When to Contact a Medical Professional

If you notice that your child's forehead looks overly prominent, talk to your health care provider.

What to Expect at Your Office Visit

An infant or child with frontal bossing generally has other symptoms and signs. Taken together, these define a specific syndrome or condition. The diagnosis is based on a family history, medical history, and thorough physical evaluation.

Medical history questions documenting frontal bossing in detail may include:

  • When did you first notice the problem?
  • What other symptoms are present?
  • Have you noticed any other unusual physical characteristics?
  • Has a disorder been identified as the cause of the frontal bossing?
  • If so, what was the diagnosis?

Lab studies may be ordered to confirm the presence of a suspected disorder.

References

Kinsman SL, Johnston MV. Congenital anomalies of the central nervous system. In: Kliegman RM, St. Geme JW, Blum NJ, Shah SS, Tasker RC, Wilson KM, eds. Nelson Textbook of Pediatrics. 21st ed. Philadelphia, PA: Elsevier; 2020:chap 609.

Michaels MG, Williams JV. Infectious disease. In: Zitelli BJ, McIntire SC, Nowalk AJ, Garrison J, eds. Zitelli and Davis' Atlas of Pediatric Physical Diagnosis. 8th ed. Philadelphia, PA: Elsevier; 2023:chap 13.

Mitchell AL. Congenital anomalies. In: Martin RJ, Fanaroff AA, Walsh MC, eds. Fanaroff and Martin's Neonatal-Perinatal Medicine. 11th ed. Philadelphia, PA: Elsevier; 2020:chap 30.

Sankaran S, Kyle P. Abnormalities of the face and neck. In: Coady AM, Bower S, eds. Twining's Textbook of Fetal Abnormalities. 3rd ed. Philadelphia, PA: Elsevier Churchill Livingstone; 2015:chap 13.

  • Frontal bossing - illustration

    Frontal bossing is the descriptive term for a prominent forehead. Sometimes the brow (just above the eyes) is also heavier than normal as seen in acromegaly.

    Frontal bossing

    illustration

  • Frontal bossing - illustration

    Frontal bossing is the descriptive term for a prominent forehead. Sometimes the brow (just above the eyes) is also heavier than normal as seen in acromegaly.

    Frontal bossing

    illustration

 

Review Date: 11/6/2023

Reviewed By: Neil K. Kaneshiro, MD, MHA, Clinical Professor of Pediatrics, University of Washington School of Medicine, Seattle, WA. Also reviewed by David C. Dugdale, MD, Medical Director, Brenda Conaway, Editorial Director, and the A.D.A.M. Editorial team.

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