<prompt> Investigation of choice on Meckels Diveicula in pediatric age group isUSGCTBarium mealNa 99m Tc- peechnetate  <response>: In case of children 99mTc-peechnetate is preferentially taken up by the mucus secreting cells of gastric mucosa and ectopic gastric tissue in Meckels Diveicula. In adults less ectopic gastric tissue is seen so the test is not much accurate in adults Ref: Sabiston 20th edition Pgno :1285 