Surgery Kidney and ureter b47edbe1 Most common renal stone: A Calcium oxalate stone B Uric acid stone C Staghorn calculi D Cysteine stone High-Yield Explanation Calcium oxalate MC type of kidney stone (85%) Risk factor are hypercalciuria, hypercalcemia, hyperoxaluria Have hard, small and jagged surface. On section-wavy concentric laminae