Is porto sinusoidal vascular disease to be actively searched in patients with portal vein thrombosis?

Figure 2 Contrast-enhanced computed tomography scan of a 17 year-old patient. A: Occlusive thrombosis of the trunk of portal vein; B: Complete resolution of the portal vein thrombosis after 1 year of anticoagulant therapy; C: Relapse of the portal vein thrombosis with extension to splenic vein 1 months after the stop of the anticoagulant therapy.