Pectus excavatum
Definition
Pectus excavatum describes an abnormal formation of the rib cage that gives the chest a caved-in or sunken appearance.
Alternative Names
Funnel chest
Considerations
Pectus excavatum is a congenital (present at birth) abnormality that can be mild or severe.
It is caused by too much growth of the connective tissue that joins the ribs to the breastbone. This causes the sternum to malform inward. The child typically has a depression in the center of the chest over the sternum, and this may appear quite deep.
If pectus excavatum is severe, it may affect the heart and lungs, making exercise difficult. Also, the appearance of the chest may cause psychological difficulty for the child.
Pectus excavatum may occur as the only abnormality, or together with other syndromes.
Causes
Pectus excavatum will often occur by itself without any family history or other defects or problems. Other causes include:
- Familial pectus excavatum
- Marfan syndrome
- Poland syndrome
- Rickets
When to Contact a Medical Professional
Contact your health care provider if:
- You develop chest pain
- You develop trouble breathing
- You feel depressed or angry about your condition
- You notice decreased exercise tolerance
- You notice redness, swelling, or discharge from the area
What to Expect at Your Office Visit
Your health care provider perform a physical examination. An infant with pectus excavatum may have other symptoms and signs that, when taken together, define a specific syndrome or condition.
The health care provider will also ask questions about you or your child's medical history, such as:
- When did you first notice this?
- Is it getting better, worse, or staying the same?
- Have any other family members had an unusual-shaped chest?
- What other symptoms are there?
Tests may be done to rule out suspected disorders. These tests may include:
- Chromosome studies
- Enzyme assays
- Metabolic studies
- X-rays
Pulmonary or cardiac function tests may be done to determine how severely the lungs and heart are affected.
This condition can be surgically repaired. Surgery is generally advised if you have other problems, such as trouble exercising. In addition, some people undergo surgery for cosmetic reasons. Your health care provider can help you make decisions about your therapy.
References
Tzelepis GE, McCool FD. The lungs and chest wall disease. In: Mason RJ, Murray JF, Broaddus VC, Nadel JA. Murray and Nadel's Textbook of Respiratory Medicine. 4th ed. Philadelphia, Pa; 2005:chap 83.
Sugarbaker DJ, Lukanich JM. Chest wall and pleura. In: Townsend CM Jr., Beauchamp RD, Evers BM, Mattox KL. Sabiston Textbook of Surgery. 18th ed. Philadelphia, Pa: Saunders Elsevier; 2008:chap 57.
Reviewed By: David C. Dugdale, III, MD, Professor of Medicine, Division of General Medicine, Department of Medicine, University of Washington School of Medicine. Also reviewed by David Zieve, MD, MHA, Medical Director, A.D.A.M., Inc.
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