All are true about CBD stones except
Associated with GB stones
Primary stones are usually brown
Laboratory values may be normal in one third cases of choledocholithiasis
Retained stones are discovered after 2 years of cholecystectomy
Choledocholithiasis CBD stones are classified by point of origin Found in 6-12% of patients with GB stones Retained stones discovered within 2 years of cholecystectomy Recurrent stones detected >2 years following cholecystectomy Ref : Sabiston 20th edition Pgno :1494
G.I.T