Why hasn't this tender lesion responded to antibiotic?

December 14, 2010

A tender, crusting eruption first arose on a 69-year-old man’s ear 10 days earlier; an antibiotic failed to clear the lesion.

Case 2:
A tender, crusting eruption first arose on a 69-year-old man’s ear 10 days earlier; an antibiotic failed to clear the lesion. The patient is otherwise healthy, with no predisposing diseases or history of trauma.

Answer on Next Page

Case 2: Candidiasis


A fungal culture that grew Candida albicans confirmed candidiasis, C. Consider candidiasis in patients who do not respond to antibiotic therapy for suspected impetigo; a candidal infection can mimic the bacterial disease. This patient’s lesion resolved after short-term oral antifungal therapy. In contrast to the rapid eruption of this patient’s lesion, actinic keratosis, squamous cell carcinoma, and seborrheic keratosis grow slowly.

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