title: A rare cause of epigastric pain and diarrhea.
authors.affiliation: Division of Gastroenterology, Ankara University Faculty of Medicine, Ibni Sina Hospital, Ankara, Turkey.
authors.forename: Irfan
authors.initials: I
authors.lastname: Soykan
authors.affiliation: Division of Pathology, Ankara University Faculty of Medicine, Ibni Sina Hospital, Ankara, Turkey.
authors.forename: Arzu
authors.initials: A
authors.lastname: Ensari
authors.affiliation: Division of Surgery, Ankara University Faculty of Medicine, Ibni Sina Hospital, Ankara, Turkey.
authors.forename: Kaan
authors.initials: K
authors.lastname: Karayalcin
mesh_terms: D015746:Abdominal Pain / Q000175:diagnosis / Q000209:etiology*; D000328:Adult; D001706:Biopsy; D017024:Chemotherapy, Adjuvant; D003967:Diarrhea / Q000175:diagnosis / Q000209:etiology*; D016145:Endoscopy, Digestive System; D019160:Endosonography; D015408:Gastrinoma / Q000150:complications* / Q000473:pathology / Q000628:therapy; D006801:Humans; D008197:Lymph Node Excision; D008198:Lymph Nodes / Q000473:pathology* / Q000601:surgery; D008297:Male; D018761:Multiple Endocrine Neoplasia Type 1 / Q000150:complications* / Q000473:pathology / Q000628:therapy; D011877:Radionuclide Imaging; D016896:Treatment Outcome