Case Report
Copyright ©The Author(s) 2025. Published by Baishideng Publishing Group Inc. All rights reserved.
World J Gastrointest Endosc. Jan 16, 2025; 17(1): 101119
Published online Jan 16, 2025. doi: 10.4253/wjge.v17.i1.101119
Complete resection of recurrent anal canal cancer using endoscopic submucosal dissection and transanal resection: A case report
Mayuko Kinoshita, Tetsuro Maruyama, Shutaro Hike, Takuya Hirosuna, Shunsuke Kainuma, Kazuya Kinoshita, Akira Nakano, Gaku Ohira, Masaya Uesato, Hisahiro Matsubara
Mayuko Kinoshita, Tetsuro Maruyama, Shutaro Hike, Takuya Hirosuna, Akira Nakano, Gaku Ohira, Masaya Uesato, Hisahiro Matsubara, Department of Frontier Surgery, Graduate School of Medicine, Chiba University, Chiba 260-8670, Japan
Shunsuke Kainuma, Department of Surgery, Seirei Sakura Citizen Hospital, Sakura 285-8765, Japan
Kazuya Kinoshita, Department of Surgery, Kumagaya General Hospital, Kumagaya 360-8567, Japan
Author contributions: Kinoshita M wrote this manuscript; Hike S, Hirosuna T, Kainuma S, and Kinoshita K reviewed related literature; Maruyama T, Nakano A, Ohira G, and Uesato M reviewed the manuscript; Matsubara H comprehensively supervised the manuscript.
Informed consent statement: All study participants, or their legal guardian, provided informed written consent prior to study enrollment.
Conflict-of-interest statement: All the authors report no relevant conflicts of interest for this article.
CARE Checklist (2016) statement: The authors have read the CARE Checklist (2016), and the manuscript was prepared and revised according to the CARE Checklist (2016).
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: Tetsuro Maruyama, MD, PhD, Department of Frontier Surgery, Graduate School of Medicine, Chiba University, 1-8-1 Inohana, Cyuo-ku, Chiba 260-8670, Japan. t.maruyama@chiba-u.jp
Received: September 5, 2024
Revised: November 22, 2024
Accepted: December 23, 2024
Published online: January 16, 2025
Processing time: 133 Days and 19.4 Hours
Core Tip

Core Tip: Early anal canal cancer is frequently treated with endoscopic submucosal dissection at many institutions to preserve the anal function. However, lesions located in the anal canal are more difficult to resect because of the high risk of bleeding and difficulty of endoscopic manipulation. We encountered a case of early anal canal cancer that recurred after insufficient combined endoscopic submucosal dissection and transanal resection. After improving the treatment technique, complete resection of the lesion was achieved. This report describes the precautions and areas of improvement related to our treatment method.