All are true about CBD stones except: (A) Associated with GB stones, (B) Primary stones are usually brown, (C) Laboratory values may be normal in one third cases of choledocholithiasis, (D) Retained stones are discovered after 2 years of cholecystectomy
Answer is D. 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