Tinea nigra with dermoscopic diagnosis: First autochthonous case in Italy?

From direct to confocal microscopy for tinea nigra: Time to shift towards in vivo imaging?

“…In a scenario where traditional tests may give false negative results or being time consuming, we remark the reliability of real-time imaging in the accurate evaluation of tinea nigra. 1,6,7 As non-invasive skin-imaging continues to become faster, easy to handle and more accurate, it can be expected that in the next future office-based microscopy would be replaced with innovative technology like RCM, eliminating the need of scraping or biopsy for the diagnosis of dermatophytoses. 10 In conclusion, we agree with Di Cristo et al that a clinical evaluation with dermoscopy may be sufficient to establish a correct diagnosis.…”

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Dear Editor, We read with great interest the clinical case by Di Cristo et al 1 reporting tinea nigra on the right palm of a 4-year-old white girl. In the clinical case, traditional diagnostic laboratory methods including microscopic examination of scraping and fungal culture were not performed, and tinea nigra was diagnosed by dermoscopy alone.

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A pigmented macule on the palm

“…Typical dermoscopic features of tinea nigra include a reticular-like line pattern that does not correspond to the normal skin anatomy 1. While the parallel ridge pattern may suggest acral melanoma, the absence of colour gradation is a crucial distinguishing characteristic that helps differentiate tinea nigra from malignant melanoma 2. Pathological examination can aid in the differential diagnosis 3…”