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 branca: revisäo de literatura a respeito de três casos / White piedra: review of the literatura report of three cases

Os autores apresentam três casos de piedra branca comprometendo o couro cabeludo de crianças em idade pré-escolar. O Trichosporon beigelii foi caracterizado por exames micológicos. Revisa-se a literatura abordando aspectos clínicos, micológicos e terapêuticos