LRG1 and Kawasaki disease: Although the exact vascular pathogenesis in Kawasaki disease is not well understood, vascular complications include necrotizing arteritis associated with neutrophilic and immune cell infiltration, the release of pro-inflammatory cytokines, luminal myofibroblast proliferation and progressive obstruction of the coronary lumen have all been linked with LRG1 in other conditions and so it is likely that it plays a role in this and other vasculitides.