title: Melaena due to the presence of heterotopic gastric mucosa in Meckel's diverticulum.
mesh_terms: D004240:Diverticulum; D005753:Gastric Mucosa; D006801:Humans; D007422:Intestines; D008467:Meckel Diverticulum; D008551:Melena
keywords: INTESTINES/diverticula; MELENA