<prompt> In pauci immune glomerulonephritis, immunofluorescence of renal biopsy specimens do not reveal any evidence of immunoglobulin or complement deposition. Pauci immune necrotizing glomerulonephritis is seen in:After transplant in alposMicroscopic polyangiitisHenoch-Schonlein nephritisLupus  <response>: Pauci-immune necrotizing glomerulonephritis is caused by the following systemic ANCA-associated small-vessel vasculitides: granulomatosis with polyangiitis, microscopic polyangiitis, and Churg-Strauss disease. ANCA-associated glomerulonephritis can also present as a primary renal lesion without systemic involvement; this is termed idiopathic crescentic glomerulonephritis. Ref: Watnick S., Dirkx T. 2013. Chapter 22. Kidney Disease. In M.A. Papadakis, S.J. McPhee, M.W. Rabow Eds, CURRENT Medical Diagnosis Treatment 2013. 