Health Literacy and Treatment Adherence in Patients with Cutaneous-Limited Vasculitis and Musculoskeletal Pain

Cutaneous-limited vasculitis (CLV) is an encompassing term for a variety of inflammatory diseases involving dermal blood vessels, which vary based on vessel size, histologic features, and location.Though known for its hallmark features of palpable purpura (i.e., bleeding under the skin, causing variable-sized red-purple areas) and petechiae (i.e., a visible collection of blood under the skin, diameter of <0.5 cm), certain CLV conditions may involve musculoskeletal (MSK) symptoms [1].Examples include urticarial vasculitis, Henoch-Schnlein Purpura, cryoglobulinemia, and microscopic polyangiitis [2].The skin and MSK systems share common intervascular networks and immunological processes.Cutaneous vasculitis involves immune-mediated injury to the dermal microvascular unitcharacterized by endothelial activation, neutrophil recruitment, and cytokine releaseleading to local inflammation and tissue remodeling.These immune signals can transfer into nearby MSK structures, which can cause systemic symptoms, such as arthralgias and myalgias, even in skin-limited disease processes [3,4].These connected systemic symptoms are attributed to shared segmental vasculature and neurovascular reflex arcs [3,4].Recognizing these interconnected mechanisms and their impact on patient experience emphasizes the importance of integrating clinical management