Anti-Neutrophil Cytoplasmic Antibody-Associated Vasculitis

**Definition:** Group of systemic vasculitis with a strong association with ANCA. The disorders are characterized by necrotizing inflammation of small and medium size vessels, with little or no immune-complex deposits in vessel walls.

**Tree numbers:** - C14.907.940.897.249 - C17.800.862.105 - C20.111.193

**Synonyms:** - ANCA-Associated Vasculitides - Pauci-Immune Vasculitis - ANCA-Associated Vasculitis