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Ribcage
Ribcage


Bowed chest (pigeon breast)
Bowed chest (pigeon breast)


Pectus carinatum

Definition:

Pectus carinatum describes a protrusion of the chest over the sternum, often described as giving the person a bird-like appearance.



Alternative Names:

Pigeon breast; Pigeon chest



Considerations:

Pectus carinatum may occur as a solitary abnormality or in association with other genetic disorders or syndromes.The condition causes the sternum to protrude, with a narrow depression along the sides of the chest. This gives the chest a bowed-out appearance similar to that of a pigeon.

People with pectus carinatum generally develop normal hearts and lungs, but the deformity may prevent these from functioning optimally. There is some evidence that pectus carinatum may prevent complete expiration of air from the lungs in children. These young people may have a decrease in stamina, even if they do not recognize it.

Apart from the possible physiologic consequences, pectus deformities can have a significant psychologic impact. Some children live happily with pectus carinatum. For others, though, the shape of the chest can damage their self-image and self-confidence, possibly disrupting connections with others.



Common Causes:

Home Care:

No specific care is indicated for this condition.



Call your health care provider if:

Call your health care provider if you notice that your child's chest seems abnormal in shape.



What to expect at your health care provider's office:

A brace may be used to treat children and young adolescents.

The health care provider will perform a physical exam and ask questions about the patient's medical history and symptoms. Question may include:

  • When did you first notice this? Was it present at birth, or did it develop as the child grew?
  • Is it getting better, worse, or staying the same?
  • What other symptoms are also present?

Pulmonary function testing may be useful to determine the impact of the deformity on the performance of the heart and lungs. Laboratory studies such as chromosome studies , enzyme assays, x-rays, or metabolic studies may be ordered to confirm the presence of a suspected disorder.

Surgery is a possible treatment option. There have been some reports of improved exercise ability and improved lung perfusion scans after surgery.



References:

Boas SR. Skeletal diseases influencing pulmonary function. In: Kliegman RM, Behrman RE, Jenson HB, Stanton BF, eds. Nelson Textbook of Pediatrics. 19th ed. Philadelphia, Pa: Saunders Elsevier; 2011:chap 411.




Review Date: 8/2/2011
Reviewed By: Neil K. Kaneshiro, MD, MHA, Clinical Assistant Professor of Pediatrics, 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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