A 31-year-old American man visited Thailand and walked on the resort beach in his bare feet. Nine days later, a creeping; eruption developed on his right sole. A skin biopsy revealed a blister formation and many eosinophils were infiltrated in the epidermis and perivascular area of the dermis. No parasite larvae were found in serial sections. The parasite-specific antibody titer in serum sample of the patient was not elevated. This eruption was thus diagnosed to be cutaneous larva migrans due to dog hookworms, because of the characteristic clinical course and the manifestation of symptoms.
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