Choledocholithiasis is the presence of calculi in the biliary tree and is the most common cause of bile duct obstruction. It is seen in ≈15% of patients with cholelithiasis, although calculi can also form de novo within the biliary system.


Choledocholithiasis is the presence of calculi in the biliary tree and is the most common cause of bile duct obstruction. It is seen in ≈15% of patients with cholelithiasis, although calculi can also form de novo within the biliary system.