Proposal of a new classification scheme for complete portal vein thrombosis and its clinical significance: A retrospective study

Figure 2 Acute portal vein thrombosis. A: Contrast-enhanced abdominal computed tomography (CT) (coronal view): A very low-density vascular shadow in the main trunk of the portal vein, with uniform density and consistent vascular morphology. No collateral formation was observed, and the vessel wall did not thicken (orange arrow); B: Unenhanced abdominal CT (coronal view): A high-density vascular shadow in the main trunk of the portal vein, with uniform density and consistency with the vascular morphology (orange arrow); C: Histological analysis with hematoxylin and eosin staining: Consistent with the imaging findings, the vascular lumen shows aggregates of red blood cells without wall thickening (scale bar, 100 μm).