Which of the following is the most consistent feature of rapidly progressing glomerulonephritis (RPGN)?
(A) Crescent formation (B) Mesangial cell proliferation (C) IgAdeposition (D) Loss offoot processes
(A) Ans: A. Crescent formationRapidly Progressive (Crescentic) Glomerulonephritis:Most common histologic - Presence of crescents in most glomeruli (crescentic glomerulonephritis).Crescents:Produced by proliferation of parietal cells & infiltration of monocytes & macrophages.