<prompt> Riglers triad is a feature ofPost laparotomy obstructionGall stone IleusCarcinoma Head of PancreasBarotrauma  <response>: Ans. b Gall stone IleusRef: Sabiston 20th edition page 1506Riglers Triad is seen in gall stone ileus: Tumbling obstruction of small intestine Pneumobilia Cholecysto Enteric fistulaMost common in old ageObstruction most common in terminal ileum 