Pauci-Immune Glomerulonephritis associated with Microscopic Polyangiitis

**Semantic type:** Disease or Syndrome

**Definition:** Glomerulonephritis in the context of systemic, small vessel vasculitis in which anti neutrophil cytoplasm antibody (ANCA) is almost always present.

**Synonyms:** - Pauci-immune Glomerulonephritis associated with Microscopic Polyangiitis