title: Heterotopic gastric mucosa in the small intestine.
abstract: A case of tumorous heterotopic gastric mucosa which acted as a leading point of jejunal double-barrelled intussusception in a 16-year-old girl is presented. The lesion, 5 x 3 x 2 cm, was polypoid in shape with sharp circumscription. Histologically, the tumor consisted of gastric fundic and pseudopyloric glands. The pertinent literature is also reviewed.
mesh_terms: D000293:Adolescent; D000328:Adult; D002648:Child; D005260:Female; D005753:Gastric Mucosa / Q000473:pathology*; D006801:Humans; D007078:Ileal Neoplasms / Q000473:pathology; D007223:Infant; D007417:Intestinal Polyps / Q000473:pathology* / Q000601:surgery; D007580:Jejunal Neoplasms / Q000473:pathology* / Q000601:surgery; D007583:Jejunum / Q000473:pathology*; D008297:Male; D008875:Middle Aged; D013274:Stomach Neoplasms / Q000473:pathology*