The gallbladder is a small sac-like organ located in the upper right abdomen. Gallstones are dense particles produced in the gallbladder by bilirubin and bile cholesterol. Cholesterol stones and pigment stones are the two forms of gallstones. Gallstones are made up of cholesterol in 80% of cases, and calcium, salts, and bilirubin in 20% of cases.
コメント