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What is All are true about pigmented stones except: and explain in detail?
Ans. (b) Secondary CBD stonesRef: Sabiston 19/e p 1485-1486* Black pigmented stones are seen in hemolytic states.* Brown pigmented stones can form in the bile duct itself (Primary Bile duct stone)* MC stone in Asian People* Hepato lithiasis - the commonest stone is Earthy Brown Stones