<prompt> Double bubble sign is seen in -Ladds bandAnnular pancreasDuodenal atresiaAll of the above  <response>: Ans. is d i.e., All of the above o Double bubble sign is seen in duodenal atresia, duodenal web, deudenal stenosis, Ladds band, Annular pancreas, Malrotation of gut, preduodenal vein.Single Bubble signCongenita hypertrophic pyloric stenosisDouble Bubble signDuodenal atresiaDuodenal webDuodena stenosisLadds bandAnnular pancreasMalrotation of gutPreduodenal veinTriple Bubble signJejunal or proximal ileum atresiaMultiple Bubble signIleal atresia 