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Dermoscopic features in fungal melanonychia
I Kilinc Karaarslan1, A Acar, D Aytimur
1Department of Dermatology, Medical Faculty, Ege University, Izmir, Turkey.
Clinical and Experimental Dermatology
|December 17, 2014
Summary
Dermoscopy reveals unique features in fungal melanonychia, aiding diagnosis. Key findings include multicoloured pigmentation and specific patterns like homogeneous pigmentation with black aggregates.
Area of Science:
- Dermatology
- Mycology
- Dermoscopy
Background:
- Limited data exists on the specific dermoscopic characteristics of fungal melanonychia.
- Accurate diagnosis of fungal melanonychia can be challenging.
Purpose of the Study:
- To identify and describe the key dermoscopic features associated with fungal melanonychia.
- To improve diagnostic accuracy for this nail condition.
Main Methods:
- Retrospective review of patient records, clinical history, and dermoscopic images.
- Analysis of 14 cases with 20 affected nails diagnosed with fungal melanonychia over one year.
Main Results:
- Melanonychia striata was the most frequent type (7/20 nails).
- Multicoloured pigmentation was present in 19 nails.
- Homogeneous pigmentation was common, often accompanied by black pigmented aggregates (granules or clumps) in 16 lesions. Other features included matt black/white pigmentation, yellow-brown hues, black reverse triangles, superficial transverse striations, and blurred appearance.
Conclusions:
- Several distinct dermoscopic features have been identified in fungal melanonychia.
- These dermoscopic findings can assist clinicians in diagnosing fungal melanonychia.
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