Formation of urinary calculi (stones).
The presence of a stone in any organ or duct.
The formation of stones in an organ.
The process of stone formation in the gallbladder, bile duct, kidney, ureters, or urinary bladder.
Formation of stones (calculi) in an internal organ (e.g., the gallbladder or kidney).
The formation of stones in an internal organ, such as the gall bladder, urinary system, pancreas, or appendix.
A general name applied to the formation of calculi and concretions in tissues or organs: for example, cholelithiasis means the formation of calculi in the gall-bladder.