(BMJ)—A 70-year-old woman presented with an 8-week hx of a lesion on the dorsum of her R hand. She had multiple recent trips to Australia. The lesion had failed to respond to 2 prior rounds of cryocautery. PMHx: lymphoma diagnosed 15 years prior, last tx finished 7 years prior; no warts. Exam: 2-cm red, firm lesion with protruding horn. Excisional bx confirmed the dx. What is it?
Seborrheic keratosis
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HPV wart
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Invasive squamous cell cancer
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Keratoacanthoma
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Actinic keratosis
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