이상원ANCA연관혈관염 (ANCA-associated vasculitis) : 미세다발혈관염(microscopic polyangiitis, MPA), 육아종증다발혈관염 (granulomatosis with polyangiitis, GPA), 호산구육아종증다발혈관염 (eosinophilic granulomatosis with polyangiitis, EGPA)결절다발동맥염 (polyarteritis nodosa, PAN)타카야수동맥염 (Takayasu arteritis)