large gallstone, gall bladder stone. the result of gallstones

abdomen background bile bilirubin biology bladder calcium calculus carbonic cholecystectomy cholecystitis cholelithiasis cholesterol closeup colic cup diet digestion digestive discomfort disease duct ducts effects epithelium gall gallstone green health healthy infection intestine laparoscopic large liver medical mucus nutrition obstruction organ phosphate removal result scientific size stone stones surgeon surgery white worms