White piedra, black piedra, tinea versicolor, and tinea nigra: contribution to the diagnosis of superficial mycosis

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.

Piedra preta / Black piedra

Os autores apresentam dois casos de piedra preta comprometendo o couro cabeludo de adultos.O Piedraia hortae foi caracterizado por exames micologicos.Revisa-se a literatura abordando aspectos clinicos,micologicos e terapeuticos.