PMC8421798_01
Child's scalp lesion, showing hair loss, pus discharge and crusting.
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F1
Culture examination. (A) Macroscopic appearance of the colonies; (B)
reverse of the macroscopic colonies; (C) microscopic view of Nannizzia gypsea, showing hyaline, multiseptate and fusiform thin-walled macroconidia (methylene blue stain, x 100, bar 10 mum).
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F2
The colonies had a macroscopic powdery aspect: they appeared sand-coloured in the central portion and showed a narrow white peripheral border (Figure 2A), while the reverse had a brown tint (Figure 2B). Microscopic evaluation was performed through methylene blue staining: abundant hyaline, multiseptate and fusiform thin-walled macroconidia were observed (Figure 2C) as well as hyaline and multiseptate hyphae; just few single-celled and clavate smooth-walled microconidia were noted.
Clinical course. (A) Three months and (B) 4 months after initiation of treatment.
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F3
From the third month after initiation of dual treatment to the child and dogs, culture examination for the dermatophyte became negative, and the child's hair gradually grew back (Figures 3A,B).