2. Known systemic and/or non-skin-isolated vasculitis, such as granulomatosis with polyangiitis, eosinophilic granulomatosis with polyangiitis, cryoglobulinemic vasculitis, systemic polyarteritis nodosa, central nervous system vasculitis and patients with detectable antineutrophil cytoplasmic antibody (ANCA) by immunofluorescence or ELISA.