Case Report
Copyright ©The Author(s) 2025. Published by Baishideng Publishing Group Inc. All rights reserved.
World J Gastrointest Surg. Aug 27, 2025; 17(8): 108656
Published online Aug 27, 2025. doi: 10.4240/wjgs.v17.i8.108656
Inferior mesenteric arteriovenous fistula: Three case reports
Si-Bin Mei, Jing Liu, Yu Wang, Peng Hu, Qian Cao
Si-Bin Mei, Jing Liu, Yu Wang, Qian Cao, Department of Gastroenterology, Sir Run Run Shaw Hospital, Zhejiang University School of Medicine, Hangzhou 310016, Zhejiang Province, China
Peng Hu, Department of Radiology, Sir Run Run Shaw Hospital, Zhejiang University School of Medicine, Hangzhou 310016, Zhejiang Province, China
Author contributions: Mei SB, Liu J, Wang Y, Hu P collected and summarized case data, wrote and revised the manuscript; Cao Q revised the manuscript; all authors have read and approved the final manuscript.
Informed consent statement: Informed written consent was obtained from the patient for publication of this report and any accompanying images.
Conflict-of-interest statement: The authors disclose no conflicts.
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: Qian Cao, MD, PhD, Professor, Department of Gastroenterology, Sir Run Run Shaw Hospital, Zhejiang University School of Medicine, No. 3 East Qingchun Road, Hangzhou 310016, Zhejiang Province, China. caoq@zju.edu.cn
Received: April 21, 2025
Revised: May 26, 2025
Accepted: July 1, 2025
Published online: August 27, 2025
Processing time: 128 Days and 3.5 Hours
Core Tip

Core Tip: Inferior mesenteric arteriovenous fistula (IMAVF) is a rare condition characterized by abnormal communication between the inferior mesenteric artery and vein. Presentations of IMAVF are usually non-specific and therefore poses diagnostic challenge and delay. We reported three consecutive cases of IMAVF that mimics ulcerative colitis and ischemic bowel disease, and provided a brief literature review, aiming to facilitate rapid recognition and timely treatment in clinical practice.