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. 2023 Jan 11;20(2):1339. doi: 10.3390/ijerph20021339

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© 2023 by the authors.

Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (https://creativecommons.org/licenses/by/4.0/).

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Histologic findings: (A) superficial and deep dermal perivascular inflammatory infiltrate, hematoxylin eosin (HE). (B) High-power view of the inflammatory infiltrate, showing predominance of lymphocytes and plasma cells, HE. (C) Endothelial swelling of dermal blood vessels (arrow), HE. (D) Immunostaining for CD138 highlights plasma cells infiltrate, (E) scattered multinucleated giant cells in the infiltrate, also of the Langhans type (arrowhead), and (F) elastophagocytosis (asterisk), Weigert-Von Gieson staining.