title: Ampullary neuroendocrine tumor diagnosed by endoscopic papillectomy in previously confirmed ampullary adenoma.
abstract: Ampullary adenoma is a common indication for endoscopic papillectomy. Ampullary neuroendocrine tumor (NET) is a rare disease for which complete surgical resection is the treatment of choice. However, because of the morbidity and mortality associated with surgical resection, endoscopic papillectomy is increasingly used in selected cases of low grade, with no metastasis and no invasion of the pancreatic or bile duct. Also, confirmed and complete endoscopic resection of ampullary NET accompanied by adenoma has not been reported to date. We report herein a rare case of an ampullary NET accompanied with adenoma, which was successfully and completely resected via endoscopic papillectomy. Prior to papillectomy, this case was diagnosed as an ampullary adenoma.
authors.affiliation: Seoung Ho Lee, Tae Hoon Lee, Chi Young Choi, Won Myung Lee, Ji Hey Min, Sang-Heum Park, Division of Gastroenterology, Department of Internal Medicine, Soonchunhyang University College of Medicine, Cheonan Hospital, Cheonan 330-721, South Korea.
authors.forename: Seoung Ho
authors.initials: SH
authors.lastname: Lee
authors.affiliation: Seoung Ho Lee, Tae Hoon Lee, Chi Young Choi, Won Myung Lee, Ji Hey Min, Sang-Heum Park, Division of Gastroenterology, Department of Internal Medicine, Soonchunhyang University College of Medicine, Cheonan Hospital, Cheonan 330-721, South Korea.
authors.forename: Tae Hoon
authors.initials: TH
authors.lastname: Lee
authors.affiliation: Seoung Ho Lee, Tae Hoon Lee, Chi Young Choi, Won Myung Lee, Ji Hey Min, Sang-Heum Park, Division of Gastroenterology, Department of Internal Medicine, Soonchunhyang University College of Medicine, Cheonan Hospital, Cheonan 330-721, South Korea.
authors.forename: Si-Hyong
authors.initials: SH
authors.lastname: Jang
authors.affiliation: Seoung Ho Lee, Tae Hoon Lee, Chi Young Choi, Won Myung Lee, Ji Hey Min, Sang-Heum Park, Division of Gastroenterology, Department of Internal Medicine, Soonchunhyang University College of Medicine, Cheonan Hospital, Cheonan 330-721, South Korea.
authors.forename: Chi Young
authors.initials: CY
authors.lastname: Choi
authors.affiliation: Seoung Ho Lee, Tae Hoon Lee, Chi Young Choi, Won Myung Lee, Ji Hey Min, Sang-Heum Park, Division of Gastroenterology, Department of Internal Medicine, Soonchunhyang University College of Medicine, Cheonan Hospital, Cheonan 330-721, South Korea.
authors.forename: Won Myung
authors.initials: WM
authors.lastname: Lee
authors.affiliation: Seoung Ho Lee, Tae Hoon Lee, Chi Young Choi, Won Myung Lee, Ji Hey Min, Sang-Heum Park, Division of Gastroenterology, Department of Internal Medicine, Soonchunhyang University College of Medicine, Cheonan Hospital, Cheonan 330-721, South Korea.
authors.forename: Ji Hey
authors.initials: JH
authors.lastname: Min
authors.affiliation: Seoung Ho Lee, Tae Hoon Lee, Chi Young Choi, Won Myung Lee, Ji Hey Min, Sang-Heum Park, Division of Gastroenterology, Department of Internal Medicine, Soonchunhyang University College of Medicine, Cheonan Hospital, Cheonan 330-721, South Korea.
authors.forename: Hyun Deuk
authors.initials: HD
authors.lastname: Cho
authors.affiliation: Seoung Ho Lee, Tae Hoon Lee, Chi Young Choi, Won Myung Lee, Ji Hey Min, Sang-Heum Park, Division of Gastroenterology, Department of Internal Medicine, Soonchunhyang University College of Medicine, Cheonan Hospital, Cheonan 330-721, South Korea.
authors.forename: Sang-Heum
authors.initials: SH
authors.lastname: Park
mesh_terms: D000236:Adenoma / Q000737:chemistry / Q000473:pathology / Q000601:surgery*; D014670:Ampulla of Vater / Q000737:chemistry / Q000473:pathology / Q000601:surgery*; D014408:Biomarkers, Tumor / Q000032:analysis; D001706:Biopsy; D003138:Common Bile Duct Neoplasms / Q000737:chemistry / Q000473:pathology / Q000601:surgery*; D004384:Duodenoscopy; D019160:Endosonography; D005260:Female; D006801:Humans; D007150:Immunohistochemistry; D008875:Middle Aged; D018193:Neoplasms, Complex and Mixed; D018358:Neuroendocrine Tumors / Q000737:chemistry / Q000473:pathology / Q000601:surgery*; D011237:Predictive Value of Tests; D016717:Sphincterotomy, Endoscopic; D016896:Treatment Outcome
chemical_list: D014408:Biomarkers, Tumor
keywords: Adenoma; Ampulla of Vater; Neuroendocrine tumor; Papillectomy