stone of gallbladder. the result of gallstones. a calculus of dissimilar composition on a wooden background

abdomen background bile bilirubin black bladder calcium calculus carbonic cholecystitis cholesterol clinical colic danger deposit digestion digestive discomfort disease duct ducts education epithelium gall gallbladder gallstone gallstones health hospital infection inflammation intestine large liver medical mucus obstruction organ phosphate removal result round salt science size sphere stone surgery system treatment worms