Skin Deep: A Narrative Case Series and Review of Cutaneous Vasculitis and Possible Doppelgängers.

Abstract

Cutaneous vasculitis presents with a wide variety of lesions. These may occur in systemic vasculitis, represent isolated cutaneous vasculitis, or signal mimickers arising from non-rheumatologic etiologies, highlighting the importance of a broad differential diagnosis. The consumption of recreational drugs and various adulterants has been increasingly recognized for their cutaneous manifestations that may mimic a vasculitic lesion. This combination review and case series highlights the vascular anatomy of the skin and a suggested clinical approach when evaluating vasculitic-appearing lesions through four vignettes.