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Updated: May 5, 2026
Creating Radio-cephalic Arteriovenous Fistula in the Forearm with a Modified No-Touch Technique
Published on: April 1, 2022
Inferior mesenteric arteriovenous fistula: Three case reports
Si-Bin Mei1, Jing Liu1, Yu Wang1
1Department of Gastroenterology, Sir Run Run Shaw Hospital, Zhejiang University School of Medicine, Hangzhou 310016, Zhejiang Province, China.
Background:
Inferior mesenteric arteriovenous fistula (IMAVF) is an extremely rare condition characterized by abnormal communication between the inferior mesenteric artery and vein. IMAVF often mimics ischemic bowel disease and ulcerative colitis (UC), leading to diagnostic challenges and treatment failures.
Case Summary:
Three consecutive cases presented with non-specific symptoms including perianal pain and bloody diarrhea were reported. Initial diagnosis included acute severe UC and ischemic colitis. Pathology suggested ischemic changes, and with further contrast-enhanced computed tomography together with digital subtraction angiography which confirmed the diagnosis of IMAVF. All three cases were treated by vascular embolization, and symptoms improved rapidly following treatment.
Conclusion:
We presented the largest single center IMAVF series with detailed clinical characteristics, facilitating early diagnosis for similar cases in the future.
