Retrospective Study
Copyright ©The Author(s) 2015. Published by Baishideng Publishing Group Inc. All rights reserved.
World J Gastroenterol. Mar 7, 2015; 21(9): 2693-2699
Published online Mar 7, 2015. doi: 10.3748/wjg.v21.i9.2693
Clinical usefulness of endoscopic ultrasonography for the evaluation of ulcerative colitis-associated tumors
Kiyonori Kobayashi, Kana Kawagishi, Shouhei Ooka, Kaoru Yokoyama, Miwa Sada, Wasaburo Koizumi
Kiyonori Kobayashi, Research and Development Center for New Medical Frontiers, Kitasato University, School of Medicine, Sagamihara, Kanagawa 252-0380, Japan
Kana Kawagishi, Shouhei Ooka, Kaoru Yokoyama, Miwa Sada, Wasaburo Koizumi, Department of Gastroenterology, Kitasato University, School of Medicine, Sagamihara 252-0380, Japan
Author contributions: Kobayashi K wrote the article and made the figure and table; Kobayashi K, Kawagishi K and Ooka S performed data collection; Yokoyama K, Sada M and Koizumi W provided important input concerning the study design; and Koizumi W recommended the most appropriate medical journal for submission 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: Kiyonori Kobayashi, MD, PhD, Associate Professor, Research and Development Center for New Medical Frontiers, Kitasato University, School of Medicine, 2-1-1 Asamizodai, Minami-ku, Sagamihara, Kanagawa 252-0380, Japan. koba-eus@kitasato-u.ac.jp
Telephone: +81-42-7489111 Fax: +81-42-7498690
Received: August 5, 2014
Peer-review started: August 6, 2014
First decision: August 27, 2014
Revised: September 22, 2014
Accepted: November 18, 2014
Article in press: November 19, 2014
Published online: March 7, 2015
Processing time: 215 Days and 19.4 Hours
Core Tip

Core tip: The results of large studies evaluating endoscopic ultrasonography (EUS) for the diagnosis of ulcerative colitis (UC)-associated tumors have not been reported previously. The aim of this study was to evaluate the usefulness of EUS for UC-associated tumors. The study group comprised 16 UC-associated tumors for which the depth of invasion was preoperatively estimated by EUS. The depth of invasion was correctly estimated by EUS for 15 lesions (94%). The 2 mucosal lesions treated by endoscopic resection were both diagnosed correctly. EUS provides a good estimation of the invasion depth of UC-associated tumors and may thus facilitate the selection of treatment.