Computed tomography scan of the abdomen and pelvis with intravenous contrast, coronal view, demonstrating a thrombus.Coronal view of a computed tomography scan of the abdomen and pelvis with intravenous contrast revealing a large thrombus in the superior mesenteric vein (red arrow). A computed tomography scan that had been obtained two days earlier had demonstrated thrombus regression; recrudescence likely occurred due to withdrawal of anticoagulation in preparation for a colonoscopy.