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Branchial cleft cyst
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Branchial cleft cyst

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Cleft sinus

A branchial cleft cyst is a lump that develops in the neck or just below the collarbone. It is a type of birth defect.

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  • Causes

    Branchial cleft cysts form during development of the embryo. They occur when tissues in the neck and collarbone area (branchial cleft) fail to develop normally.

    The birth defect may appear as open spaces called cleft sinuses, which may develop on one or both sides of the neck. A branchial cleft cyst may form from fluid drained from a sinus. The cyst or sinus can become infected.

  • Symptoms

    • Small pits, lumps, or skin tags at either side of the neck or just below the collarbone
    • Fluid drainage from a pit on the neck
  • Exams and Tests

    Your baby's health care provider may be able to diagnose this condition during a physical examination. The following tests may be done:

    • CT scan
    • MRI scan
    • Ultrasound
  • Treatment

    Antibiotics will be given if the cyst or sinuses are infected.

    Surgery is generally indicated to remove a branchial cyst to prevent complications, such as infections.

  • Outlook (Prognosis)

    Surgery is usually successful, with good results.

  • Possible Complications

    The cyst or sinuses may become infected if not removed.

  • When to Contact a Medical Professional

    Call for an appointment with your health care provider if you notice a small pit, cleft, or lump in the neck or upper shoulder of your infant, especially if fluid drains from this area.

Related Information

  Fetal development...Cyst    

References

Wetmore RF, Potsic WP. Differential diagnosis of neck masses. In: Flint PW, Haughey BH, Lund LJ, et al, eds. Cummings Otolaryngology: Head & Neck Surgery. 5th ed. Philadelphia, Pa: Mosby Elsevier; 2010:chap 198.

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Review Date: 10/29/2013  

Reviewed By: Kimberly G Lee, MD, MSc, IBCLC, Associate Professor of Pediatrics, Division of Neonatology, Medical University of South Carolina, Charleston, SC. Review provided by VeriMed Healthcare Network. Also reviewed by David Zieve, MD, MHA, Isla Ogilvie, PhD, and the A.D.A.M. Editorial team.

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