Tiny keratotic brown lesions on the interdigital web between the toes of a healthy man caused by Curvularia species infection and a review of cutaneous Curvularia infections
Yanagihara, M., Shinseikai Toyama Hospital, Imizu, Toyama (Japan) | Kawasaki, M. | Ishizaki, H. | Anzawa, K. | Udagawa, S. | Mochizuki, T. | Sato, Y. | Tachikawa, N | Hanakawa, H.
A 74-year-old healthy Japanese man had noticed an itchy lesion with two tiny thick brown scales on the fourth interdigital web of his right foot 3 months earlier. The brown fungus isolated from the scales had demonstrated brown, ellipsoidal, obovoid or clavate, 3-septate conidia. Morphologically, the fungus was identified as Curvularia sp., and was differentiated from other human pathogenic species of the genus, such as C. lunata, C. pallescens, C. trifolii, C. clavata, and C. brachyspora, by molecular analysis based on the DNA sequence data. The fungus grows well on keratotic materials (hairs, nails, and callus), which indicates that it might have the ability to infect the skin surface.
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