Retrospective Study
Copyright ©The Author(s) 2022. Published by Baishideng Publishing Group Inc. All rights reserved.
World J Clin Cases. Dec 26, 2022; 10(36): 13284-13292
Published online Dec 26, 2022. doi: 10.12998/wjcc.v10.i36.13284
Classification of rectal cancer according to recurrence types - comparison of Japanese guidelines and Western guidelines
Hiroshi Miyakita, Yutaro Kamei, Lin Fung Chan, Kazutake Okada, Hajime Kayano, Seiichiro Yamamoto
Hiroshi Miyakita, Yutaro Kamei, Lin Fung Chan, Kazutake Okada, Hajime Kayano, Seiichiro Yamamoto, Department of Digestive System Surgery, Tokai University School of Medicine, Isehara 259-1193, Kanagawa, Japan
Author contributions: Miyakita H designed the research; Miakita H and Chan LF performed the research; Miyakita H and Kamei Y contributed new reagents/analytic tools; Miyakita H, Okada K and Kayano H analyzed the data; Miyakita H and Yamamoto S wrote the paper.
Institutional review board statement: Approval code issued by the institutional review board: 20R-238 Tokai University.
Informed consent statement: Patients were not required to give informed consent to the study because the analysis used anonymous clinical data that were obtained after each patient agreed to treatment by written consent.
Conflict-of-interest statement: All authors have no conflict of interest to declare in association with this study.
Data sharing statement: No additional data are available.
Open-Access: This article is an open-access article that was selected by an in-house editor and fully peer-reviewed by external reviewers. It is distributed in accordance with the Creative Commons Attribution NonCommercial (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: https://creativecommons.org/Licenses/by-nc/4.0/
Corresponding author: Hiroshi Miyakita, MD, PhD, Doctor, Surgeon, Surgical Oncologist, Department of Digestive System Surgery, Tokai University School of Medicine, 143 Shimokasuya Isehara, Isehara 259-1193, Kanagawa, Japan. mykt0124@tokai-u.jp
Received: August 31, 2022
Peer-review started: August 31, 2022
First decision: October 20, 2022
Revised: November 5, 2022
Accepted: December 9, 2022
Article in press: December 9, 2022
Published online: December 26, 2022
Processing time: 117 Days and 8.1 Hours
Core Tip

Core Tip: Local recurrence and lung metastasis are more common in rectal cancer than in colon cancer. However, the diagnosis of rectal cancer is not standardized as there is no global consensus on its definition and classification. The classification of rectal cancer differs between Japanese and Western guidelines. High rectal cancer may be treated with the same treatment strategies as colon cancer. There was no difference in the classification of colorectal cancer between Japan and Western countries.