title: A rare cause of gastrointestinal bleeding.
authors.affiliation: Division of Gastroenterology, Taipei Veterans General Hospital, Taipei, Taiwan; School of Medicine, National Yang-Ming University, Taipei, Taiwan.
authors.forename: Yen-Po
authors.initials: YP
authors.lastname: Wang
authors.affiliation: Division of Pathology, Taipei Veterans General Hospital, Taipei, Taiwan.
authors.forename: Ying-Ru
authors.initials: YR
authors.lastname: Kuo
authors.affiliation: Division of Gastroenterology, Taipei Veterans General Hospital, Taipei, Taiwan; School of Medicine, National Yang-Ming University, Taipei, Taiwan.
authors.forename: Ching-Liang
authors.initials: CL
authors.lastname: Lu
mesh_terms: D002011:Brunner Glands / Q000473:pathology*; D004378:Duodenal Diseases / Q000150:complications*; D005260:Female; D006471:Gastrointestinal Hemorrhage / Q000209:etiology*; D006222:Hamartoma / Q000150:complications* / Q000473:pathology; D006801:Humans; D008875:Middle Aged