More than 80% of gall stones is composed of: (A) Bile pigments, (B) Cholesterol, (C) Calcium salts, (D) Phospolipids
Answer is B. Ans. (b) CholesterolRef: Sabiston 20th edition Page 1491* Major structure present in Gall stones is Cholesterol.* Pigment stones are given the name when Cholesterol is present in amount of <30%.* Hence most common stone in Gallbladder is Mixed stone