title: Intraluminal duodenal diverticulum associated with trisomy 21 in a two-year-old.
mesh_terms: D002675:Child, Preschool; D004240:Diverticulum / Q000209:etiology*; D004314:Down Syndrome / Q000150:complications*; D004378:Duodenal Diseases / Q000209:etiology*; D006801:Humans; D008297:Male