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Why does the laboratory distinguish between dermatophyte and non-dermatophyte hyphae in nails?

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Why does the laboratory distinguish between dermatophyte and non-dermatophyte hyphae in nails?

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Fungal agents in nails often have reduced viability, and so the sensitivity of the culture results is reduced. For this reason, it is not uncommon to obtain a positive microscopy finding without the isolation of a pathogenic agent. Therefore, for treatment purposes, the microscopy of nails will often comment on the presence of dermatophyte, yeast or non-dermatophyte type mycelium. Unfortunately this distinction is technically difficult and is not always possible, even for the most experienced microscopist. The differentiation of the fungal agents is important as the non-dermatophytes are often secondary colonisers of damaged nails. In such cases the primary factor affecting the nails need to be addressed paying attention to nail care issues. The use of an anti-fungal agents is only a possible secondary action. Dermatophytes, on the other hand will required treatment to affect cure. 4. When is the presence of Malassezia furfur/ Pityrosporum reported. Pityrosporum is a common commensal y

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