Endoscopic resection of colorectal laterally spreading tumors: Clinicopathologic characteristics and risk factors for treatment outcomes

doi:10.4253/wjge.v17.i6.106412

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Jun 16, 2025 (publication date) through Jun 11, 2025

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World Journal of Gastrointestinal Endoscopy

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1948-5190

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Baishideng Publishing Group Inc, 7041 Koll Center Parkway, Suite 160, Pleasanton, CA 94566, USA

Retrospective Study

World J Gastrointest Endosc. Jun 16, 2025; 17(6): 106412
Published online Jun 16, 2025. doi: 10.4253/wjge.v17.i6.106412

Endoscopic resection of colorectal laterally spreading tumors: Clinicopathologic characteristics and risk factors for treatment outcomes

Li-Hua Guo, Ke-Feng Hu, Min Miao, Yong Ding, Xin-Jun Zhang, Guo-Liang Ye

Li-Hua Guo, Ke-Feng Hu, Min Miao, Yong Ding, Xin-Jun Zhang, Guo-Liang Ye, Department of Gastroenterology, The First Affiliated Hospital of Ningbo University, Ningbo 315020, Zhejiang Province, China

Author contributions: Guo LH performed a literature search and wrote the manuscript; Hu KF, Miao M, Ding Y, and Zhang XJ had full access to all data in the study and took responsibility for the integrity of the data and the accuracy of the data analysis; Ye GL reviewed the manuscript accordingly; Guo LH, Hu KF, Miao M, Ding Y, Zhang XJ, and Ye GL contributed to data curation; and all authors thoroughly reviewed and endorsed the final manuscript.

Institutional review board statement: This study was approved by the Medical Ethics Committee of Faculty of the First Affiliated Hospital of Ningbo University, approval No. 2024-083RS.

Informed consent statement: Informed consent was obtained by opting out, not in writing, as this is a retrospective analysis.

Conflict-of-interest statement: All the authors report no relevant conflicts of interest for this article.

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: Guo-Liang Ye, Full Professor, Department of Gastroenterology, The First Affiliated Hospital of Ningbo University, No. 247 Renmin Road, Jiangbei District, Ningbo 315020, Zhejiang Province, China. ndfyygl@163.com

Received: March 7, 2025
Revised: April 9, 2025
Accepted: May 8, 2025
Published online: June 16, 2025
Processing time: 96 Days and 13.7 Hours

Core Tip

Core Tip: We retrospectively analyzed 375 colorectal laterally spreading tumors (LSTs) at our hospital between January 2016 and December 2023. Univariate and multivariate analyses were performed to identify risk factors for high-grade dysplasia/carcinoma, submucosal invasion and complications. The novel nomogram incorporated tumor size, location, and morphology for predicting high-grade dysplasia/carcinoma during endoscopic resection for LSTs. Multivariate analysis indicated that LST non-granular pseudo depressed type lesions larger than 20 mm had a significantly higher probability of submucosal invasion. Additionally, tumor size ≥ 30 mm emerged as a critical predictor of complications.