Which of the following is the most consistent feature of rapidly progressing glomerulonephritis (RPGN)?
Crescent formation
Mesangial cell proliferation
IgAdeposition
Loss offoot processes
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.