acute otitis externa

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Furuncle
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Furuncle

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This patient has an acute furuncle affecting the cartilaginous external canal. This is sometimes referred to as localized acute otitis externa. A furuncle is essentially a staphylococcal mini abscess...

Chronic Otitis Externa
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Chronic Otitis Externa

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This is the classical appearance of chronic otitis externa. The lumen is patent and a purulent exudate can be seen within the canal. In these cases the etiological agent may be quite varied and a swab...

Acute Diffuse Otitis Externa
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Acute Diffuse Otitis Externa

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This is a classical case of acute diffuse otitis externa which is sometimes referred to as "swimmers ear". Most cases of acute otitis externa are the result of an bacterial infection of the...

Severe Acute Otitis Externa with Meatal Occlusion
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Severe Acute Otitis Externa with Meatal Occlusion

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This is a case of very severe acute otitis externa in which the skin of the cartilaginous external canal has swollen to such an extent that it is beginning to occlude the meatus. When the meatus becomes...

Early Acute Otitis Externa
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Early Acute Otitis Externa

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This is an example of an early acute diffuse otitis externa caused by pseudomonas aeruginosa. note that the lumen of the external canal is still patent and consequently this acute bacterial infection...