Case Challenge
A 9-year-old boy presented to the dermatology clinic with a scaly eruption distributed throughout the body that had been present since birth. He had been diagnosed with atopic dermatitis by multiple dermatologists prior to the current presentation and had been treated with various topical steroids with minimal improvement. He had no family history of similar eruptions and no personal history of asthma or allergies. Physical examination revealed erythematous, serpiginous, polycyclic plaques with peripheral, double-edged scaling. Decreased hair density of the lateral eyebrows also was observed. What is the correct diagnosis? A. acrodermatitis enteropathica B. erythema marginatum C. erythrokeratodermia variabilis D. neonatal lupus E. Netherton syndrome
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