Tinea presents as a pruritic rash and is often seen under skin folds.
A pruritic rash under the left breast has bothered a 67-year-old woman for the past month. She takes an antihypertensive and is otherwise healthy.
What does this look like to you?
E. Contact dermatitis.
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Case 1: Tinea
A potassium hydroxide evaluation for dermatophytes confirmed a diagnosis of tinea, D, although no obvious source could be identified. The rash responded quickly to an antifungal cream.
Candidiasis usually has satellite lesions extending from the periphery. Intertrigo is a diagnosis of exclusion; it is caused by heat and chafing. Erythrasma resembles this patient's rash, but it responds to topical antibacterial therapy. Contact dermatitis is typically bilateral.