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What is Rigler's triad is a feature of and explain in detail?
Ans. (b) Gall stone IleusRef: Sabiston 20th edition page 1506Rigler's 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