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A 77-year-old man presented to our dermatology clinic with several erythematous, purpuric, scaling plaques over his genital and suprapubic regions, which had appeared over the previous year ([Figure 1A][1]). Similar lesions had developed in both axilla ([Figure 1B][1]) over the previous 6 months. He
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Chiang et al. (2024) studied this question.
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