In which procedural setup would a T-tube typically be found?

A T-tube is specifically designed to facilitate drainage from the common bile duct, particularly after surgical procedures where the duct may need to remain open for healing or monitoring purposes. It is commonly utilized following the exploration of the common bile duct, which may involve the removal of stones or the treatment of strictures. This drainage system allows bile to flow from the liver into the intestine while ensuring that any residual stones or post-operative complications can be monitored.

In a cholecystectomy, which involves the removal of the gallbladder, the use of a T-tube is generally not necessary, as this procedure does not directly involve the common bile duct in the same manner. Similarly, cholelithotripsy, a procedure to break up gallstones, does not usually require a T-tube. Lastly, choledochoscopy, a procedure that allows direct visualization of the common bile duct, is also typically performed without the introduction of a T-tube since the goal is often to treat conditions without creating a long-term drainage solution.