[Antineutrophilic cytoplasmic antibodies (ANCA) in inflammatory rheumatic diseases: immunodiagnostic and immunopathogenetic aspects].

Anti-neutrophil cytoplasmic antibodies (ANCA) are a heterogeneous group of autoantibodies with a wide and diverse range of clinical associations. Over the past decade ANCA have been the subject of extensive investigations. In vasculitis the diagnostic utility of proteinase 3 (PR3)-ANCA and myeloperoxidase (MPO)-ANCA for Wegener's granulomatosis (WG) and microscopic polyangiitis (MPA), respectively…