Abstract
Onychomycoses in temperate climates are most commonly due to dermatophytes, particularly Trichophyton rubrum. Non-dermatophyte nail infections are much less frequent, and their diagnosis requires a careful and repeated search for a potential dermatophyte that may have been overgrown in culture. A series of histological slides of suspected onychomycoses with uncommon fungal morphology prompted us to search for non-dermatophytic moulds causing dermatophytosis-like nail infections. Thirty cases were identified by culture as Fsolani, Foxysporum, Fdimerum or F spp, and two more were only diagnosed histopathologically. None of these patients was immunocompromised. Treatment was mostly unsuccessful with terbinafine whereas itraconazole showed a moderately better treatment result; in all cases, a topical ciclopirox nail varnish in a hydroxychitosan base was added.
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