A fungus is recovered from a nail scrapping.Microscopic examination reveals numerous smooth,thin-walled,club-shaped,multiseptate macroconidia;however,microconidia are absent.The organism can be identified as:

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E.floccosum grows slowly,and growth appears as an olive green-to-khaki color,with the periphery surrounded by a dull orange-brown color.After several weeks,colonies develop a cottony white aerial mycelium that completely overgrows the colony and is sterile;it remains so,even after subculture.Microscopically,numerous smooth,thin-walled,club-shaped,multiseptate (2 to 4 µm)macroconidia are observed .They are rounded at the tip and are borne singly on a conidiophore or in groups of two or three.Microconidia are absent,spiral hyphae are rare,and chlamydoconidia are usually numerous.

A Fungus Is Recovered from a Nail Scrapping