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The dermoscopic features of lichen planus and its topographic variants Volume 31, issue 3-4, Mai-Août 2022

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Author
Département de dermatologie, Faculté de Médecine et de Pharmacie, Université Ibn Zohr, CHU Souss Massa, N°3545 Hay El Mohammadi, Agadir, Maroc
* Tirés à part : R. Chakiri

Lichen planus is a heterogeneous chronic inflammatory dermatosis occurring in middle-aged adults. It can affect the skin, mucous membranes and dander. The pathophysiology involves an immune reaction mediated by T lymphocytes, which attack the basal keratinocytes inducing their apoptosis. Dermoscopy is a non-invasive examination allowing the visualization of structures, invisible to the naked eye, located at the epidermis, the dermo-epidermal junction and the dermis. In this article we describe the dermoscopic aspects of lichen planus and its topographic variants.