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White piedra, black piedra, tinea versicolor, and tinea nigra: contribution to the diagnosis of superficial mycosis* * Work conducted at the Dermatology Clinic, Irmandade da Santa Casa de Misericórdia de São Paulo, São Paulo, SP, Brazil.

Abstract

Superficial mycoses are fungal infections restricted to the stratum corneum and to the hair shafts, with no penetration in the epidermis; they are: white piedra, black piedra, tinea versicolor, and tinea nigra. This study presents images of mycological tests performed in the laboratory, as well as exams performed at the authors office, in order to improve the dermatologist's knowledge about the diagnosis of these dermatoses, which are common in many countries.

Keywords:
Culture; Culture media; Dermoscopy; Malassezia; Mycology; Mycoses; Physical examination; Phaeohyphomycosis; Piedra; Tinea; Tinea versicolor

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