March 2009

Tunga penetrans: Description of a New Dermoscopic Sign—The Radial Crown

Author Affiliations

Copyright 2009 American Medical Association. All Rights Reserved. Applicable FARS/DFARS Restrictions Apply to Government Use.2009

Arch Dermatol. 2009;145(3):348-349. doi:10.1001/archdermatol.2008.611

We agree with Bauer et al1 and Di Stefani et al2 regarding the dermoscopic features of Tunga penetrans described in earlier issues of the Archives, and we would like to describe here an additional dermoscopic finding for this disease. Tungiasis is an ectoparasitic skin disease caused by the female sand flea T penetrans. It is endemic to South and Central America, sub-Saharan Africa, the Caribbean, and Asia, where it represents a public health problem. The transmission of the flea occurs by walking barefoot in sands contaminated by feces of pigs and cows. The diagnosis is clinical, but dermoscopy is helpful and shows many characteristic features.1,2

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