Crescents are derived from
Crescents are feature of RPGN.
They are made up of parietal epithelial cells,
fibrin and monocytcs / Macrophages.
Mesangium + fibrin + macrophage
Visceral epithelial cells + fibrin + macrophage
Parietal epithelial cells + fibrin + macrophages
Tubular epithelium + fibrin + macrophages