<prompt> Patient presenting with cutaneous vasculitis, glomerulonephritis, peripheral neuropathy, which of the following will help in diagnosis?ANCARA factorHbsagMIF  <response>: Ref. API Textbook of Medicine. Pg. 1313 Cutaneous vasculitis features DiagnosisAnti-neutrophil cytoplasmic antibodies ANCAs:Group of autoantibodiesIgG type mainly,Produced against antigens in cytoplasm of neutrophil granulocytes monocytes.Particularly associated with systemic vasculitis, so called ANCA-associated vasculitis.c-ANCA Abs against MPO, p-ANCA - Abs Against PR3 