title: Heterotopic gastric mucosa of ileum causing acute intussusception.
mesh_terms: D002648:Child; D002828:Choristoma / Q000150:complications*; D005753:Gastric Mucosa; D006801:Humans; D007082:Ileum; D007414:Intestinal Neoplasms / Q000150:complications*; D007443:Intussusception / Q000209:etiology*; D008297:Male