ABSTRACT
Distal lateral subungual onychomycosis (DLSO) is the most common type of onychomycosis (Figures 8.3, 8.4, 8.5, 8.7-8.9). Responsible
Table 8.1 Causes of onychomycosis
Type of organism Prevalence (%)
Dermatophytes 83 Non-dermatophytic moulds 15 (approx.) Yeasts < 1
frequently Trichophyton rubrum), moulds (Scytalidium spp., Scopulariopsis spp., Fusarium spp., Acremonium spp., Onychocola canadensis) and yeasts (Candida spp.). The skin of the palms and soles is frequently involved, especially in dermatophytic infections with plantar scaling (Figure 8.2). Tinea cruris is common in patients with onychomycosis due to T. rubrum and Epidermophyton floccosum (see Figure 8.7).
