Retrospective Study
Copyright ©The Author(s) 2025. Published by Baishideng Publishing Group Inc. All rights reserved.
World J Gastrointest Surg. Aug 27, 2025; 17(8): 107230
Published online Aug 27, 2025. doi: 10.4240/wjgs.v17.i8.107230
Pathological features and risk factors for submucosal infiltration of colorectal lateral spreading tumors
Wen-Jie Shi, Jian-Bo Han, Gong-Ming Cheng, Xu-Cheng Liu, Xue-Wen Tao, Liu-Qun Shan
Wen-Jie Shi, Jian-Bo Han, Gong-Ming Cheng, Xu-Cheng Liu, Xue-Wen Tao, Liu-Qun Shan, Department of General Surgery, The Second Hospital of Nanjing, Nanjing 210000, Jiangsu Province, China
Author contributions: Shi WJ and Han JB contributed to study design, data collection, and manuscript preparation; Cheng GM assisted with endoscopic procedures and data acquisition; Liu XC provided statistical support; Tao XW contributed to pathological evaluation; Shan LQ supervised the study and revised the manuscript. All authors reviewed and approved the final manuscript.
Institutional review board statement: This study was reviewed and approved by the Ethics Committee of The Second Hospital of Nanjing (approval number: 2022-LS-ky034). It was conducted in accordance with the principles of the Declaration of Helsinki and relevant national regulations.
Informed consent statement: This retrospective study used anonymized clinical data and did not involve any direct patient contact. The requirement for informed consent was waived by the Ethics Committee of The Second Hospital of Nanjing.
Conflict-of-interest statement: The authors declare that there are no conflicts of interest related to this study.
Data sharing statement: The datasets used and/or analyzed during the current study are available from the corresponding author upon reasonable request.
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: Liu-Qun Shan, MD, Department of General Surgery, The Second Hospital of Nanjing, No. 1-1 Zhongfu Road, Gulou District, Nanjing 210000, Jiangsu Province, China. shanliuqun721@163.com
Received: April 25, 2025
Revised: June 3, 2025
Accepted: June 24, 2025
Published online: August 27, 2025
Processing time: 122 Days and 5.4 Hours
Core Tip

Core Tip: This study investigates the endoscopic and pathological characteristics of laterally spreading tumors (LSTs) in the colon and rectum, focusing on the risk factors for carcinogenesis and submucosal infiltration. The results highlight that lesion size, location, and endoscopic classification, particularly the presence of large nodules, are independent risk factors for malignant transformation. Additionally, the endoscopic classification of LST-NG pseudodepressed type, along with large nodules, is a significant predictor of submucosal infiltration. The study emphasizes the importance of careful endoscopic evaluation for early detection and appropriate treatment strategies, including endoscopic submucosal dissection and mucosal resection.