case_images: PMC11278070_01
case_images: The front edge and side edge of the third and fourth fingers of the left hand are thickened and turned yellow with subungual hyperkeratosis and onycholysis, and the surface of the deck is uneven (A); Calcofluor white staining showing pseudohyphae under the fluorescent microscope (400x) (B); Smooth, moist, and cheese-like colonies can be seen on the Sabouraud's Dextrose Agar medium (C); Oval spores can be seen under the fluorescence microscope (400x) (D); Healthy nail plate after four months follow-up (E).
case_images: IDR-17-3185-g0001.jpg
case_images: PMC11278070_01_IDR-17-3185-g0001.jpg
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case_images: The condition was left untreated, gradually progressing over time, with the nails losing opacity, thickening, separating, and fragmenting, accompanied by the presence of white debris (Figure 1A).  Under fluorescent microscopy, we observed the presence of pseudohyphae and yeast cells (Figure 1C). The round milky white yeast-like colonies of various sizes were observed (Figure 1D), and oval spores were seen under the fluorescence microscope (Figure 1E). Four months later, the infant had completely recovered (Figure 1B), and fungal microscopic examinations and cultures showed negative results.