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©The Author(s) 2016. Published by Baishideng Publishing Group Inc. All rights reserved.
World J Gastroenterol. Sep 28, 2016; 22(36): 8242-8246
Published online Sep 28, 2016. doi: 10.3748/wjg.v22.i36.8242
Published online Sep 28, 2016. doi: 10.3748/wjg.v22.i36.8242
Case of a tumor comprising gastric cancer and duodenal neuroendocrine tumor
Hiroaki Kaneko, Yasuaki Ishii, Soichiro Sue, Haruo Miwa, Tomohiko Sasaki, Toshihide Tamura, Masaaki Kondo, Shin Maeda, Department of Gastroenterology, Yokohama City University Graduate School of Medicine, Yokohama 236-0004, Japan
Akio Miyake, Department of Pathology, Yokohama City University Graduate School of Medicine, Yokohama 236-0004, Japan
Author contributions: Kaneko H performed the majority of experiments and wrote the manuscript; Miyake A was in charge of the pathological diagnosis; Ishii Y, Sue S, Miwa H, Sasaki T, Tamura T and Kondo M participated to the medical care of the patient; Maeda S served as scientific advisor and participated to the medical care of the patient.
Institutional review board statement: This case report was approved by the ethics committee of Yokohama City University Graduate School of Medicine.
Informed consent statement: All study participants provided informed written consent prior to the treatment.
Conflict-of-interest statement: No benefits in any form have been received or will be received from a commercial party related directly or indirectly to the subject of this article.
Open-Access: This article is an open-access article which was selected by an in-house editor and fully peer-reviewed by external reviewers. It is distributed in accordance with the Creative Commons Attribution Non Commercial (CC BY-NC 4.0) license, which permits others to distribute, remix, adapt, build upon this work non-commercially, and license their derivative works on different terms, provided the original work is properly cited and the use is non-commercial. See: http://creativecommons.org/licenses/by-nc/4.0/
Correspondence to: Shin Maeda, MD, PhD, Department of Gastroenterology, Yokohama City University Graduate School of Medicine, 3-9 Fukuura Kanazawa-ku, Yokohama 236-0004, Japan. smaeda@yokohama-cu.ac.jp
Telephone: +81-45-7872326 Fax: +81-45-7872327
Received: March 11, 2016
Peer-review started: March 12, 2016
First decision: April 14, 2016
Revised: April 20, 2016
Accepted: June 13, 2016
Article in press: June 13, 2016
Published online: September 28, 2016
Processing time: 198 Days and 16.2 Hours
Peer-review started: March 12, 2016
First decision: April 14, 2016
Revised: April 20, 2016
Accepted: June 13, 2016
Article in press: June 13, 2016
Published online: September 28, 2016
Processing time: 198 Days and 16.2 Hours
Core Tip
Core tip: Although there are some reports of endoscopic resection performed to duodenal neuroendocrine tumor (NET), no reports have been published on the treatment of duodenal NET composed of early gastric cancer treated by endoscopic submucosal dissection (ESD). A 78-year-old woman underwent esophagogastroduodenoscopy and revealed a protruded tumor through the pyloric ring from the pyloric antrum. ESD was performed and finally the tumor was diagnosed as gastric cancer composed of duodenal NET G1, with a lymphatic invasion of NET component. We report the first case of early gastric cancer accompanied by duodenal NET, which was resected by ESD.