Case Reports
6 June 2023
Vol. 15 No. 3 (2023)
https://doi.org/10.4081/dr.2023.9698

Wickham striae on skin appendages: a helpful dermoscopic feature

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Wickham striae, lichen planus, skin appendages, dermoscopy
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Authors

Laura Fagotto
https://orcid.org/0009-0005-4680-3284
Dermatology Unit, Department of Medicine, University of Padova, Italy.
Laura Gnesotto
https://orcid.org/0009-0000-1652-4157
Dermatology Unit, Department of Medicine, University of Padova, Italy.
Colombina Vincenzi
https://orcid.org/0009-0004-6065-0862
Dermatology Division, IRCCS University Hospital of Bologna S. Orsola-Malpighi Polyclinic, Bologna; Department of Experimental, Diagnostic and Specialty Medicine, Alma Mater Studiorum University of Bologna, Italy.
Bianca Maria Piraccini
https://orcid.org/0000-0001-6537-9689
Dermatology Division, IRCCS University Hospital of Bologna S. Orsola-Malpighi Polyclinic, Bologna; Department of Experimental, Diagnostic and Specialty Medicine, Alma Mater Studiorum University of Bologna, Italy.
Luigi Naldi
https://orcid.org/0000-0002-3160-2835
Dermatologic Unit, San Bortolo Hospital, Vicenza, Italy.
Andrea Sechi
andrea.sechi@aulss8.veneto.it
Dermatology Division, IRCCS University Hospital of Bologna S. Orsola-Malpighi Polyclinic, Bologna; Department of Experimental, Diagnostic and Specialty Medicine, Alma Mater Studiorum University of Bologna; Dermatologic Unit, San Bortolo Hospital, Vicenza, Italy.

Lichen planus (LP) is a chronic inflammatory disease, clinically characterized by purpuric, itchy papules that typically spread on the trunk and extremities. Other body sites can also be affected, including mucosal membranes, nails, and the scalp. The use of dermoscopy is essential in determining the diagnosis of LP, as it may highlight pathognomonic features such as Wickham striae (WS). WS are thin, pearly white structures arranged in a reticular pattern that is observed over LP lesions and histologically correspond to epidermal hypergranulosis. WS is usually most visible on the oral mucosa but can also cover almost every active LP papule. Here, we report two cases of biopsy-proven LP that show WS on dermoscopy in two specific sites: the scalp and proximal nail fold.

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Wickham striae on skin appendages: a helpful dermoscopic feature. (2023). Dermatology Reports, 15(3). https://doi.org/10.4081/dr.2023.9698
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