"ANCA associated vasculitides"
"granulomatosis with polyangiitis: ANCA associated pulmonary renal syndrome"
"idiopathic, pauci-immune pulmonary capillaritis: may or may not be ANCA associated"
"non-ANCA associated pulmonary renal syndrome: Goodpasture syndrome 2"
Expected headings
"Small vessel vasculitides"
"Large vessel vasculitides"
"Granulomatous disease"