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Plaques on dorsal hands & arms

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This patient’s slow-growing lesions hadn’t responded to topical steroids or antifungals. Careful consideration of her work environment led us to a curious diagnosis.


 

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A 45-year-old woman sought treatment for plaques that she’d had on the top of her hands for 6 months (FIGURE 1). These plaques had been getting larger, and new papules and plaques were now developing on the dorsal arms. She’d first noticed the lesions after unpacking some crates from overseas while working at a hardware store. She’d applied unspecified types and dosages of topical steroids and antifungals, but her condition hadn’t improved. We performed a punch biopsy of a lesion on her arm.

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