preauricular sinus

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Preauricular Cyst
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Preauricular Cyst

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If the external opening of the tract of the preauricular sinus becomes closed, the epithelium lining the tract will continue to shed epithelial squames into the tract thereby producing a preauricular...

Preauricular Pit and Infected Preauricular Sinus
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Preauricular Pit and Infected Preauricular Sinus

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This patient demonstrates both a preauricular pit and an infected preauricular sinus. Thanks to Dr Anthony F Jahn.

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