Dirofilaria from the Index Finger of a Man in Costa Rica

Paul C. Beaver Department of Tropical Medicine, Tulane University School of Public Health and Tropical Medicine, New Orleans, Louisiana 70112

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Rodrigo Brenes University of Costa Rica, Department of Parasitology, San José, Costa Rica

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Jose Ardon Hospital de Upala, San Jose, Costa Rica

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A 4.5-cm male Dirofilaria indistinguishable from D. immitis was removed from the tip of the index finger of an 18-year-old farmer in Costa Rica. The case is reminiscent of a report of a larger (9-cm) but otherwise similar Dirofilaria, identified as D. spectans, a heartworm of otters, causing Raynaud's syndrome by occluding an artery of the fifth finger of a farm woman in Brazil. As in the present case, the worm was removed from a painful papule on the volar surface at the extreme tip of the affected finger.

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