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Mastoiditis - side view of head

Mastoiditis is an infection of the bony air cells in the mastoid bone, located just behind the ear. It is rarely seen today because of the use of antibiotics to treat ear infections. This child has drainage from the ear and redness (erythema) behind the ear over the mastoid bone.

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Definition Causes, incidence, and risk factors Symptoms Signs and tests Treatment Expectations (prognosis) Complications Calling your health care provider Prevention References

Related Learning
Centers

·As a Disease/Condition

Mastoiditis

·As a Complication

Chronic Middle Ear Infection

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