title: Prolapsed hyperplastic gastric polyp causing gastric outlet obstruction, hypergastrinemia, and hematemesis in an infant.
abstract: An infant presented with hematemesis and gastric outlet obstruction. Preoperative diagnosis of duodenal duplication cyst was based on a collaboration of radiological studies. At exploration the patient was found to have a gastric polyp that had intussuscepted into the duodenum leading to obstruction and hypergastrinemia secondary to gastric mucosa in the duodenal alkaline environment.
authors: Department of Surgery, Rhode Island Hospital, Providence.
authors: G S
authors: GS
authors: Brooks
authors: E S
authors: ES
authors: Frost
authors: C
authors: C
authors: Wesselhoeft
mesh_terms: D017219:Gastric Outlet Obstruction / Q000209:etiology*; D005755:Gastrins / Q000097:blood*; D006396:Hematemesis / Q000209:etiology*; D006801:Humans; D006965:Hyperplasia; D007223:Infant; D008297:Male; D011127:Polyps / Q000097:blood / Q000150:complications*; D013274:Stomach Neoplasms / Q000097:blood / Q000150:complications*
chemical_list: D005755:Gastrins