title: The Coexistence of Somatostatinoma and Gastrointestinal Stromal Tumor in the Duodenum of a Patient with Von Recklinghausen's Disease.
abstract: We herein describe a case of somatostatinoma coexisting with a gastrointestinal stromal tumor (GIST) in the duodenum of an 81-year-old woman with Von Recklinghausen's disease (VRD) and common bile duct stone who presented with diarrhea of three months in duration. Gastroduodenoscopy revealed an ulcer on the second part of the duodenum. A 2.1-cm enhancing tumor was observed to extend from the ulcer on an abdominal computed tomography scan. Subtotal stomach-preserving pancreaticoduodenectomy revealed a somatostatinoma on the papilla of the vater and duodenal GIST. There have been only eight reports on VRD associated with ampullary somatostatinoma and GIST. An awareness of this possibility in patients with gastrointestinal lesions is necessary for proper treatment and patient management.
authors.affiliation: Department of Gastroenterology and Hepatology, Saitama Medical Center, Saitama Medical University, Japan.
authors.forename: Ryuichi
authors.initials: R
authors.lastname: Yamamoto
authors.forename: Shingo
authors.initials: S
authors.lastname: Kato
authors.forename: Toshinori
authors.initials: T
authors.lastname: Maru
authors.forename: Riki
authors.initials: R
authors.lastname: Ninomiya
authors.forename: Fumiaki
authors.initials: F
authors.lastname: Ozawa
authors.forename: Yoshifumi
authors.initials: Y
authors.lastname: Beck
authors.forename: Keiko
authors.initials: K
authors.lastname: Abe
authors.forename: Jun-Ichi
authors.initials: J
authors.lastname: Tamaru
authors.forename: Sumiko
authors.initials: S
authors.lastname: Nagoshi
authors.forename: Koji
authors.initials: K
authors.lastname: Yakabi
mesh_terms: D000369:Aged, 80 and over; D003967:Diarrhea / Q000209:etiology / Q000473:pathology; D004379:Duodenal Neoplasms / Q000473:pathology* / Q000601:surgery; D017809:Fatal Outcome; D005260:Female; D042882:Gallstones / Q000150:complications / Q000473:pathology; D046152:Gastrointestinal Stromal Tumors / Q000473:pathology* / Q000601:surgery; D006801:Humans; D008197:Lymph Node Excision / Q000379:methods; D009456:Neurofibromatosis 1 / Q000150:complications / Q000473:pathology* / Q000601:surgery; D016577:Pancreaticoduodenectomy / Q000379:methods*; D013005:Somatostatinoma / Q000473:pathology* / Q000601:surgery