Fungal melanonychia: ungual phaeohyphomycosis caused by Wangiella dermatitidis
- 1 March 1992
- journal article
- case report
- Published by Oxford University Press (OUP) in Clinical and Experimental Dermatology
- Vol. 17 (2) , 83-86
- https://doi.org/10.1111/j.1365-2230.1992.tb00170.x
Abstract
A 51-year-old female Japanese patient developed black pigmentation affecting both big toe-nails. Direct potassium hydroxide examination of the nail tissue demonstrated clusters of spherical dematiaceous cells, toruloid hyphae, and septate hyphae. Wangiella dermatitidis was repeatedly isolated from the affected toe-nail lesions. This case represents the first documented case of ungual phaeohyphomycosis, 'fungal melanonychia,' caused by the dematiaceous fungus W. dermatitidis. The patient was successfully treated with a topical solution of bifonazole.Keywords
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