<unk> <unk> - Latin: few, little) vasculitis is a form of vasculitis that is associated with minimal evidence of hypersensitivity upon<unk> fluorescent staining for IgG. Often, this is discovered in the setting of the kidney. Normally a kidney sample that arrives from a patient with symptoms of proliferative nephritis. When the glomeruli of the kidney are examined, under the microscope, crescents will be observed. And then they will be subjected to<unk> fluorescence, demonstrating three patterns: linear, granular and negative<unk> . The linear and granular patterns are examples of positive<unk> fluorescence that are associated as follows: Goodpasture syndrome (linear pattern), post-streptococcal glomerulonephritis (granular), and diffuse proliferative nephritis (granular). The negative<unk> fluorescence pattern, however, is called<unk> " and is often associated with systemic vasculitides (plural of vasculitis) including: microscopic polyangiitis, eosinophilic granulomatosis with polyangiitis (EGPA), and granulomatosis with polyangiitis (GPA). In the setting of systemic vasculitis as described above, proliferative nephritis is associated with antineutrophil cytoplasmic antibodies (ANCA). Because of this, an ANCA test should always follow a negative<unk> fluorescence result to have the highest accuracy for confirming<unk>  vasculitis-driven proliferative nephritis. Some cases of<unk>  proliferative nephritis have no explanation and are thus deemed "idiopathic." Peak incidences in 50- to 60-year-olds symptoms include intermittent fever / weight loss / shortness of breath / joint pain.
Pauci-immune
Endemic 
Toxoid
Acute 
Psychogenic
Epidemic
Infodemic
Pre-medical