Two types of gallstone exist: cholesterol stones formed from cholesterol-supersaturated bile (80–90% of gallstones); and pigment stones consisting mainly of polymerized calcium bilirubinate (10 ...

The two main types of gallstones are: These medications don't work on pigment stones. You must take them several times a day; ...

Bacterial infection and dietary factors are believed to be important in the formation of pigment stones within intrahepatic bile ducts, whereas parasitic infestation is likely coincidental. With ...