ABDOMINAL IMAGINGCross-Sectional Imaging Evaluation of Vascular Lesions in the Gastrointestinal Tract and MesenteryZheng, Yanqiu MD∗; Shabana, Amr MD†; Elsayes, Khaled M. MD‡; Hamid, Aws MD§; Abdelaziz, Amr MD§; Menias, Christine O. MD∥; Shaaban, Akram M. MD¶; Liu, Peter MD#; Gaballah, Ayman H. MD§Author Information From the ∗Department of Diagnostic Radiology, Baylor College of Medicine, Houston, TX †Walsall Healthcare NHS TRUST, United Kingdom ‡Department of Diagnostic Radiology, The University of Texas MD Anderson Cancer Center, Houston, TX §Department of Diagnostic Radiology, University of Missouri, Columbia, MO ∥Department of Diagnostic Radiology, Mayo Clinic, Scottsdale, AZ ¶Department of Diagnostic Radiology, University of Utah, Salt Lake City, UT #Department of Diagnostic Radiology, Cleveland Clinic, OH. Received for publication June 7, 2020; accepted August 31, 2020. Correspondence to: Ayman H. Gaballah, MD, Department of Diagnostic Radiology, University of Missouri, One Hospital Dr. Columbia, MO 65212 (e-mail: [email protected]). The authors declare no conflict of interest. Journal of Computer Assisted Tomography: 11/12 2020 - Volume 44 - Issue 6 - p 870-881 doi: 10.1097/RCT.0000000000001107 Buy Metrics Abstract Gastrointestinal (GI) tract and mesenteric vascular lesions can have various clinical presentations, of which GI bleeding is the most common. This collection of pathology is highly variable in etiology ranging from occlusive disease to vascular malformations to trauma to neoplasms which makes for a challenging workup and diagnosis. The advent of multiple imaging modalities and endoscopic techniques makes the diagnosis of these lesions more achievable, and familiarity with their various imaging findings can have a significant impact on patient management. In this article, we review the gamut of GI tract and mesenteric vascular lesions and their associated imaging findings. Copyright © 2020 Wolters Kluwer Health, Inc. All rights reserved.