The following is an excerpt....
BASICS
Description
- Inflammation or infection of the external auditory canal and/or the auricle
- May be categorized as follows:
- Acute: Also known as “swimmer's ear,” usually an acute bacterial infection of the external auditory canal
- Chronic: Persistent, low-grade infection and inflammation of the external ear
- Atopic: Encompasses otitis externa due to atopic dermatitis, seborrheic dermatitis, psoriasis, and other inflammatory conditions
- Fungal: Occurs more commonly in patients with diabetes mellitus or an immunodeficiency
- Malignant or necrotizing: Severe otitis externa with invasive disease into the surrounding soft tissue, cartilage and bone; seen more commonly in patients with diabetes mellitus or immunodeficiency; may progress to invasive disease of the surrounding structures
Epidemiology
- Occurs more commonly in summer months
- 90% of cases ...
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