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Perichondritis Perichondritis (Causes (• Trauma, • Insect, • …
Perichondritis 
Definition
This is the inflammation of the covering of the cartilage of the pinna, perichondrium
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Pathophysiology
• The external ear namely the auricle and external auditory canal is composed of cartilage and all associated appendages
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• Any infection and inflammation of auricle may result from trauma, radiation exposure or environment insult
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