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. 2022 Jun 13;36(10):1884–1889. doi: 10.1111/jdv.18293

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© 2022 The Authors. Journal of the European Academy of Dermatology and Venereology published by John Wiley & Sons Ltd on behalf of European Academy of Dermatology and Venereology.

This is an open access article under the terms of the http://creativecommons.org/licenses/by-nc-nd/4.0/ License, which permits use and distribution in any medium, provided the original work is properly cited, the use is non‐commercial and no modifications or adaptations are made.

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Lichen planus. (a) Vertical LC‐OCT section shows thickening of the stratum corneum (green asterisk); epidermal thickening (yellow vertical line); poorly defined dermo‐epidermal junction (blue horizontal line). (b) Vertical histopathology correlation shows: hyperorthokeratosis (green asterisk); acanthosis with hypergranulosis (yellow vertical line); ‘band‐like’ lymphohistiocytic infiltrate of the dermo‐epidermal junction and rete ridges sawtoothing (H&E, ×100). (c) Horizontal LC‐OCT section at the level of the dermo‐epidermal junction (taken at the level of the blue line in a) shows absence of evident dermal papillae and presence of small, bright inflammatory cells (arrow).