Retrospective Study
Copyright ©The Author(s) 2015. Published by Baishideng Publishing Group Inc. All rights reserved.
World J Gastroenterol. Dec 7, 2015; 21(45): 12851-12856
Published online Dec 7, 2015. doi: 10.3748/wjg.v21.i45.12851
Clinicopathological characteristics of clinical early gastric cancer in the upper-third stomach
Daisuke Ichikawa, Shuhei Komatsu, Toshiyuki Kosuga, Hirotaka Konishi, Kazuma Okamoto, Atsushi Shiozaki, Hitoshi Fujiwara, Eigo Otsuji
Daisuke Ichikawa, Shuhei Komatsu, Toshiyuki Kosuga, Hirotaka Konishi, Kazuma Okamoto, Atsushi Shiozaki, Hitoshi Fujiwara, Eigo Otsuji, Division of Digestive Surgery, Department of Surgery, Kyoto Prefectural University of Medicine, Kyoto 6028566, Japan
Author contributions: Ichikawa D designed this research; Ichikawa D, Komatsu S, Kosuga T, Konishi H, Okamoto K, Shiozaki A, Fujiwara H and Otsuji E performed this research; Ichikawa D wrote the manuscript.
Informed consent statement: All study participants, or their legal guardian, provided informed written consent prior to study enrollment.
Conflict-of-interest statement: The authors have no conflicts of interest to disclose.
Data sharing statement: No additional data are available.
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: Daisuke Ichikawa, MD, PhD, Division of Digestive Surgery, Department of Surgery, Kyoto Prefectural University of Medicine, 465 Kajii-cho, Kamigyo-ku, Kyoto 6028566, Japan. ichikawa@koto.kpu-m.ac.jp
Telephone: +81-75-2515527 Fax: +81-75-2515522
Received: March 18, 2015
Peer-review started: March 19, 2015
First decision: April 23, 2015
Revised: May 16, 2015
Accepted: August 31, 2015
Article in press: August 31, 2015
Published online: December 7, 2015
Core Tip

Core tip: The clinicopathological features of patients with gastric cancer in the upper-third stomach (U group) were compared with those of patients with gastric cancer in the middle- and lower-third stomach (ML group). The rate of clinical under-diagnoses was significantly higher in the U group than in the ML group and more frequent in histologically undifferentiated tumors and in those larger than 4 cm.