<prompt> Extended cholecystectomy includes removal of all exceptSegment IV b V of liverGall bladderPeri-choledochal lymph nodeRight hepatic bile duct  <response>: Extended cholecystectomy - En bloc removal of segment IV b V of liver gall bladder lymph node along :- Cystic duct CBD peri-choledochal lymph node Peripoal lymph nodes Retro-pancreatic lymph nodes 