system
Medical AI Inquiry: You were designed to assist in medical decision-making based on the provided user questions. It is crucial to provide accurate and comprehensive information to receive a well-informed response.
user
By definition pigment stone Contain how much percentage of cholesterol
assistant
The correct answer is  Pigment stone is the name used for stones containing <30% cholesterol Classification of gallstones Cholesterol Black pigment Brow pigment Location Gall bladder and bile duct Gall bladder and bile duct Bile ducts Major constituent Cholesterol Bilirubin pigment polymer Calcium bilirubinate Consistency Crystalline with nucleus Hard Soft, Friable % Radiopaque 15% 60% 0% Ref: Bailey and love 27th edition Pgno :1120