Fig. 1

Contrast-enhanced computed tomography scans in a patient with transient PVT. Contrast-enhanced computed tomography performed in February 2017 demonstrated mild ascites, patent intrahepatic portal vein branches and splenic vein, mild thrombosis within main portal vein and superior mesenteric vein (SMV), and splenomegaly (panel a). Red arrows indicate mild thrombosis within the main portal vein and SMV. Notably, thrombus occupied less than 10% of the vessel lumen. In the absence of antithrombotic therapy, repeated contrast-enhanced computed tomography performed in April 2017 showed that intrahepatic portal vein branches, main portal vein, splenic vein, and SMV were patent (panel b). Red arrows indicate patent main portal vein and SMV