Onychomycosis

Christopher J. Hoffmann, M.D., M.P.H.

PATHOGENS

Trichophyton rubrum
Trichophyton mentagrophytes
Microsporum spp.
Epidermophyton floccosum
Non-dermatophytes (10-20% of cases), including Fusarium, Acremonium, Scopulariopsis, Aspergillus, and yeasts (Candida is reported to be more common in fingernail infections than in toenails - C. parapsilosis and C. albicans appear most common.)

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