Les onychomycoses à moisissures

摘要: Onychomycoses represent about 30% of superficial mycosis that are encountered in Dermatology consults. Fungi such as dermatophytes, which mainly found on the feet nails, cause nearly 50% these onychopathies. Yeasts predominantly present hands, whereas non-dermatophytic moulds very seldom involved both foot and hand nails infections. According to literature, responsible for 2 17% onychomycoses. Nevertheless, we have differentiate between onychomycoses due pseudodermatophytes Neoscytalidium (ex-Scytalidium) Onychocola canadensis, a high affinity keratin, filamentous fungi Aspergillus, Fusarium, Scopulariopsis, Acremonium... These saprophytic indeed most time considered colonizers rather than real pathogens agents. Mycology histopathology laboratories play an important role. They allow identify species is nail infection, but also confirm parasitism by fungus infected nails. Indeed, before attributing any pathogenic role moulds, it essential precisely evaluate their pathogenicity through samples accurate mycological and/or histological analysis. The treatment difficult, there today no consensus. choice antifungal agent will first depend severity lesions patient himself. In cases, onychomycosis be cured with chemical or mechanical removing tissues, followed local treatment. some systemic therapy discussed.