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    Perichondritis

    Perichondritis is an infection of the skin and tissue surrounding the cartilage of the outer ear.

    Causes

    Cartilage is the thick tissue that creates the shape of the nose and the outer ear. All cartilage has a thin layer of tissue around it called the perichondrium. This covering helps provide nutrients to the cartilage.

    The most common bacteria that causes perichondritis infection is Pseudomonas aeruginosa.

    Perichondritis is usually caused by injury to the ear due to ear surgery, ear piercing (especially piercing of the cartilage), or contact sports. Ear piercing through the cartilage is probably the most significant risk factor today. Surgery, burns, and acupuncture also increase the risk of infection.

    Perichondritis can cause severe damage to the ear structure if it becomes chondritis -- infection of the cartilage itself.

    Symptoms

    A painful, red ear is the most common symptom. At first the infection will look like a skin infection (cellulitis), but it quickly worsens and involves the perichondrium.

    The redness usually surrounds an area of injury, such as a cut or scrape. There may also be fever, and -- in more severe cases -- fluid draining from the wound.

    Exams and Tests

    Perichondritis is diagnosed based on the person's medical history and by looking at the ear. If there is a history of trauma to the ear and the ear is red and very tender, then perichondritis is diagnosed. There may be a change in the normal shape of the ear. The ear may look swollen.

    Treatment

    Treatment consists of antibiotics, either by mouth or directly into the bloodstream through an intravenous line (IV). If there is a trapped collection of pus, surgery may be necessary to drain this fluid and remove any dead skin and cartilage.

    Outlook (Prognosis)

    What happens depends on how quickly the infection is diagnosed and treated. If antibiotics are taken early on, full recovery is expected. In more advanced cases, when the infection involves the ear cartilage (chondritis), part of the ear may die and need to be surgically removed. If so, plastic surgery may be needed to restore the ear to its normal shape.

    Possible Complications

    If not treated early enough, the infection can spread to the ear cartilage. This would require removal of the damaged part and possibly surgery to restore it to a normal shape.

    When to Contact a Medical Professional

    If you suffer any trauma to your ear (a scratch, blow, or piercing) and then develop pain and redness over the stiff part of the outer ear, contact your health care provider. You may need to take antibiotics.

    Prevention

    The best way to prevent this infection is to avoid piercing your ear through the cartilage (as opposed to the ear lobe). The popularity of cartilage piercing has led to a significant increase in the number of perichondritis and chondritis cases.

    References

    Guss J, Ruckenstein MJ. Infections of the external ear. In: Cummings CW, Flint PW, Haughey BH, et al, eds. Otolaryngology: Head & Neck Surgery. 5th ed. Philadelphia, Pa: Mosby Elsevier; 2010:chap 137.

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          Review Date: 10/6/2012

          Reviewed By: David C. Dugdale, III, MD, Professor of Medicine, Division of General Medicine, Department of Medicine, University of Washington School of Medicine. Jatin M. Vyas, MD, PhD, Assistant Professor in Medicine, Harvard Medical School; Assistant in Medicine, Division of Infectious Disease, Department of Medicine, Massachusetts General Hospital. Also reviewed by David Zieve, MD, MHA, Medical Director, A.D.A.M. Health Solutions, Ebix, 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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