title: An inflammatory myofibroblastic tumor of the ampulla of vater successfully managed with endoscopic papillectomy: report of a case.
abstract: Inflammatory myofibroblastic tumors (IMTs) are solid neoplastic mesenchymal proliferations composed of myofibroblastic spindle cells admixed with inflammatory infiltrates. The documented sites in the gastrointestinal tract include the esophagus, small intestine, colon, appendix, rectum, pancreas, spleen, liver, and Meckel's diverticulum. Biliary IMTs are rare, and IMTs arising from the ampulla of Vater have not been reported previously. Herein we report the case of a 65-year-old woman with an extrahepatic biliary obstruction due to IMT of the ampulla of Vater, and a successful therapeutic approach using endoscopic ultrasonography and endoscopic papillectomy.
authors.affiliation: Department of Internal Medicine, The Catholic University of Korea College of Medicine, Seoul, Korea.
authors.forename: Jae Wuk
authors.initials: JW
authors.lastname: Kwak
authors.forename: Chang Nyol
authors.initials: CN
authors.lastname: Paik
authors.forename: Sung Hoon
authors.initials: SH
authors.lastname: Jung
authors.forename: U-Im
authors.initials: UI
authors.lastname: Chang
authors.forename: Kang-Moon
authors.initials: KM
authors.lastname: Lee
authors.forename: Woo Chul
authors.initials: WC
authors.lastname: Chung
authors.forename: Jin Young
authors.initials: JY
authors.lastname: Yoo
authors.forename: Jin-Mo
authors.initials: JM
authors.lastname: Yang