Imaging features and management of focal liver lesions

Figure 15  Focal hepatic steatosis. A: Axial T2 weighted magnetic resonance imaging (MRI) shows hyperintensity(arrow) in segment 4A of the liver adjacent to the falciform ligament and a hyperintense mass lesion (arrowhead); B: Axial fat-suppressed T2 weighted MRI shows the same imaging findings (arrow and arrowhead); C: Axial in-phase T1 weighted MRI shows hyperintensity in the same area (arrow) and a hypointense mass lesion(arrowhead); D: Axial out-of-phase T1 weighted image shows signal suppression compared to in-phase (arrow); E: Axial pre-contrast fat-suppressed T1 weighted image shows hypointense lesions (arrow and arrowhead); F: Axial post-contrast fat-suppressed T1 weighted image shows no contrast enhancement in the lesion(arrow) that is consistent with focal hepatic steatosis. The mass lesion in segment 8 (arrowhead) is consistent with metastasis.