Gallstones

**Definition:** Solid crystalline precipitates in the BILIARY TRACT, usually formed in the GALLBLADDER, resulting in the condition of CHOLELITHIASIS. Gallstones, derived from the BILE, consist mainly of calcium, cholesterol, or bilirubin.

**Tree numbers:** - C06.130.409.633 - C06.130.564.332.500 - C23.300.175.525

**Synonyms:** - Biliary Calculi - Gall Stone - Gall Stones - Gallstone