PMC6159292_01
MRI of the liver shows a large mass (asterisk) at the left lobe with high signal intensity on T2 weighted image (a) and low signal intensity on opposed-phase T1 weighted image with significant signal dropout on in-phase T1 weighted image, which is representative of haemosiderin deposition (b, c).
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T1 and T2 weighted images is shown in Figure 1, while the enhancement characteristics are shown in Figure 2. This mass appeared slightly hyperintense on diffusion-weighted images.
Pre-contrast T1 weighted fat-suppression image shows a hypointense mass at the left hepatic lobe (a). Dynamic contrast-enhanced MRI shows heterogeneous enhancement of the mass at the left hepatic lobe in the arterial phase (b). The mass becomes more homogeneous on portal venous and delayed images (c, d). Sagittal image acquired during the delayed phase shows a homogeneous mass (outlined by arrows), which appears relatively hypointense to the liver parenchyma (e).
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T1 and T2 weighted images is shown in Figure 1, while the enhancement characteristics are shown in Figure 2. This mass appeared slightly hyperintense on diffusion-weighted images.
Images show extrahepatic venous drainage (arrows) of this mass into the gastric varices, which ultimately drains into the portal venous system via the left gastric vein. The presence of isolated gastric varices may be explained by the impaired venous drainage from previous ligation of the splenic vein (a-c).
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Extrahepatic venous drainage was noted (Figure 3).