Anti-neutrophil cytoplasmic antibody-associated vasculitis (AAV) is a group of conditions characterized by the development of autoantibodies to the neutrophil proteins proteinase 3 (PR3-ANCA) or myeloperoxidase (MPO-ANCA), leading to systemic inflammation and damage to small blood vessels. AAV includes granulomatosis with polyangiitis (GPA), microscopic polyangiitis (MPA) and eosinophilic granulomatosis with polyangiitis (EGPA). Review our collection of articles on this topic.
FEATURED ARTICLE: Upadacitinib Is Treatment Option for Giant Cell Arteritis
