A 65-year-old man presented with skin lesions on his chest and left arm and shoulder six weeks after returning from a vacation in Belize at the beach and in the rain forest. The lesions occasionally stung, drained a dark exudate, and enlarged despite two weeks of treatment with cephalexin. The patient had no constitutional symptoms. Physical examination revealed five nodules of varying sizes with surrounding erythema and a central pore through which a single, moving larva was observed (Panel A). The pores were occluded with petrolatum for two hours. After lidocaine was injected around the nodules, five Dermatobia hominis larvae . . .
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Marty et al. (2005) studied this question.
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