<prompt> Acquired megacolon can be due toLeishmaniasisTyphoidChagas diseaseAmoebiasis  <response>: Acquired megacolon may occur at any age as a result of Chagas disease Trypanosoma cruzi, obstruction by a neoplasm or inflammatory stricture, toxic megacolon complicating ulcerative colitis, visceral myopathy, or in association with functional psychosomatic disorders poor toilet training during infancy. Ref : Bailey and Love 26e pg: 1177 