<prompt> Biliary stricture developing after Laparoscopic cholecystectomy usually occurs at which pa of the common bile duct?UpperMiddleLowerAll sites with equal frequency  <response>: Ans. is a i.e. Upper Most common duct injuries occur when the CBD or CHD or hepatic duct is mistaken to be the cystic duct and ligated andor divided. Most common site involved is upper CBD. 