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Ecthyma

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Definition:

Ecthyma is a skin infection similar to impetigo . It is often called "deep impetigo" because it occurs deep inside the skin.

Causes, incidence, and risk factors:

Ecthyma is most often caused by the bacteria streptococcus. Sometimes, staphylococcus bacteria causes this skin infection.

The infection may start in skin that has been injured due to a scratch or insect bite. It often develops on the legs.

The infection may first appear with a pus-filled blister, similar to that seen in persons with impetigo. However, the infection spreads much deeper into the skin.

References:

Habif TP. Clinical Dermatology . 4th ed. St. Louis, Mo: Mosby; 2004.

Mandell GL, Bennett JE, Dolin R. Principles and Practice of Infectious Diseases . 6th ed. London: Churchill Livingstone; 2005.

Rakel RE. Textbook of Family Practice . 6th ed. Philadelphia, Pa: WB Saunders; 2002.

• Review Date: 4/12/2007
• Reviewed By: Kevin Berman, MD, PhD, Associate, Atlanta Center for Dermatologic Disease, Atlanta, GA. Review provided by VeriMed Healthcare Network.

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