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

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 der-matologist’s knowledge about the diagnosis of these dermatoses,which are common in many countries. © 2017 by anais brasileiros de dermatologia.