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Wickham striae on skin appendages: a helpful dermoscopic feature
Laura Fagotto1, Laura Gnesotto1, Colombina Vincenzi2,3
1Dermatology Unit, Department of Medicine, University of Padova.
Dermatology Reports
|November 1, 2023
Summary
Lichen planus (LP) diagnosis is aided by dermoscopy, revealing characteristic Wickham striae (WS) on the scalp and nail fold. This study highlights WS dermoscopic features in these less common LP locations.
Area of Science:
- Dermatology
- Dermatopathology
Background:
- Lichen planus (LP) is a chronic inflammatory condition affecting skin, nails, scalp, and mucous membranes.
- Dermoscopy is crucial for diagnosing LP, identifying characteristic Wickham striae (WS).
- WS are typically observed on oral mucosa but can appear on other active LP lesions.
Purpose of the Study:
- To report two cases of biopsy-proven Lichen planus.
- To describe the dermoscopic visualization of Wickham striae (WS) in uncommon LP locations: the scalp and proximal nail fold.
Main Methods:
- Case report methodology.
- Dermoscopic examination of lesions.
- Histopathological confirmation of Lichen planus.
Main Results:
- Two patients with biopsy-proven Lichen planus were identified.
- Dermoscopy revealed characteristic Wickham striae (WS) on the scalp in one patient.
- Dermoscopy revealed characteristic Wickham striae (WS) on the proximal nail fold in the second patient.
Conclusions:
- Dermoscopy is a valuable tool for identifying Wickham striae (WS) in Lichen planus.
- Wickham striae (WS) can be observed on dermoscopy in less typical sites like the scalp and proximal nail fold.
- These findings expand the understanding of dermoscopic features in Lichen planus diagnosis.
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