Question: Can you identify this condition?

A 9-year-old boy presents with a mildly pruritic rash on his right lower ear. The lesion began 1 month ago and progressively enlarged despite treatment with a moderate potency topical steroid. His ears are not in contact with any potential allergens. He is taking no other medications, and his medical history is unremarkable.

The most likely diagnosis is

1. Atopic dermatitis

2. Lupus

3. Impetigo

4. Tinea incognita

5. Psoriasis

Answer on page 2123

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