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![Liver imaging reporting and data system and CT/MRI diagnosis of hepatocellular carcinoma](https://image.oaes.cc/9e063b25-e880-441f-a4ca-03d40c05a83b/3591.fig.2.jpg)
Figure 2. LR-TIV (Definite tumor in vein). Axial computed tomography in a 63-year-old woman with hepatitis C cirrhosis. Arterial phase (A); and portal venous phase (B) demonstrate definite enhancing soft tissue extending to the left portal vein (arrow). The observation is categorized LR-TIV. Note that the presence of parenchymal mass is not required for this category