Hepatic steatosis with mass effect: A case report

Figure 2 Computed tomography images of hepatic steatosis with mass effect. A: The unenhanced computed tomography (CT) showed irregular and inhomogeneous low-density lesion in the caudate lobe of the liver with clear boundary (arrow); B: Dynamic enhanced scanning showed mild enhancement of the lesion in the arterial phase (arrow); C: Dynamic enhanced scanning showed peak enhancement in the portal vein phase (arrow); D: Dynamic enhanced scanning showed lower enhancement in the delayed phase than in portal vein phase (arrow). The dynamic enhancement pattern of the lesion was similar to that of the adjacent normal liver parenchyma, and the lesion was hypovascular compared with the background liver in all three contrast-enhanced phases; E: The minimum intensity projection (MinIP) in the arterial phase of contrast-enhanced scanning showed that the blood supply of the lesion was from the branch of the hepatic artery (arrow). There were branches of the hepatic artery inside the mass (arrowhead); F: The mass effect of the lesion was significant. The hepatic artery and branches were compressed and displaced; G: A focal nodule (arrow) in the lesion was observed on unenhanced CT; H: The focal nodule (arrow) in the lesion was also observed on contrast-enhanced CT. The attenuation of unenhanced CT and enhancement mode was similar to that of normal liver parenchyma.