Vasa vasorum vasculitis

Vasa vasorum vasculitis, with small cuffing of lymphocytes (arrow) surrounding adventitial vasa vasorum.

From: Cavazza A, Muratore F, Boiardi L, et al. Inflamed temporal artery: Histologic findings in 354 biopsies, with clinical correlations. Am J Surg Pathol 2014; 38:1360. DOI: 10.1097/PAS.0000000000000244. Copyright © 2014. Reproduced with permission from Wolters Kluwer Health. Unauthorized reproduction of this material is prohibited.

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