Superior mesenteric arteriovenous fistula as a rare manifestation of Cowden syndrome: A case report and review of literature

doi:10.3748/wjg.122826

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World Journal of Gastroenterology

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1007-9327

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

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Copyright: ©Author(s) 2026. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution-NonCommercial (CC BY-NC 4.0) license. No commercial re-use. See permissions. Published by Baishideng Publishing Group Inc.

World J Gastroenterol. Dec 7, 2026; 32(45): 122826
Published online Dec 7, 2026. doi: 10.3748/wjg.122826

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Figure 3 Digital subtraction angiography of the superior mesenteric artery with indirect portal venography. The main trunk of the superior mesenteric artery appears thickened and tortuous. A distinct arteriovenous malformation is visible in the distal branches (orange arrow). No filling defects are observed within the vessels, and blood flow velocity is rapid, resulting in early visualization of the mesenteric and portal veins.

Citation: Zhao ZH, Qi J, Hu JM, Zhao YY, Liu MQ, Deng L, Zhang F, Gao SS, Li K. Superior mesenteric arteriovenous fistula as a rare manifestation of Cowden syndrome: A case report and review of literature. World J Gastroenterol 2026; 32(45): 122826
URL: https://www.wjgnet.com/1007-9327/full/v32/i45/122826.htm
DOI: https://dx.doi.org/10.3748/wjg.122826

Zhao ZH, Qi J, Hu JM, Zhao YY, Liu MQ, Deng L, Zhang F, Gao SS, Li K. Superior mesenteric arteriovenous fistula as a rare manifestation of Cowden syndrome: A case report and review of literature. World J Gastroenterol 2026; 32(45): 122826 [DOI: 10.3748/wjg.122826]

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