Retained common bile duct stones
Gallstones can migrate from the gallbladder into the common bile duct before or during surgery. In patients with specific risk factors — elevated bilirubin, elevated liver enzymes, dilated common bile duct on ultrasound, or a history of gallstone pancreatitis — the standard of care calls for pre-operative MRCP (magnetic resonance cholangiopancreatography) or intraoperative cholangiography to identify and address any CBD stones before closing.
Missing a CBD stone in a low-risk patient with no imaging indication is generally within the standard of care. Missing one in a patient with elevated bilirubin and a dilated duct — when MRCP was indicated and not performed — is where the claim begins.


