A 75-year-old man presented with a progressive eruption of 6 weeks' duration. Purpura and focal areas of cutaneous infarction were present on the legs. There were scabies burrows on the wrists and hands, and a mite was extracted. Histology of a skin biopsy showed a necrotizing leucocytoclastic vasculitis. Circulating lupus anticoagulant was detected. Treatment consisted of topical 5% permethrin cream and systemic steroids.
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Jarrett et al. (1998) studied this question.
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