[Gallstones--do we know it all?].

Despite several reviews on the treatment of gallstones, there still seems to be unanswered questions regarding some topics. This review focuses on some of these: Why are more and more patients being cholecystectomised? Who needs further diagnostic work-up for common bile duct stones (CBDS) before laparoscopic cholecystectomy? Is elective cholecystectomy mandatory following endoscopic or conservative treatment of complicated gallstone disease (CBDS, acute pancreatitis, or acute cholecystitis)? Further research is still required in order to answer these questions.