Benign focal liver lesions: The role of magnetic resonance imaging

Figure 7 A 50-year-old male. Liver magnetic resonance imaging demonstrates the presence of multiple bilobar small nodular lesions, hypointense on T1 imaging, hyperintense on T2 sequences, without diffusion restriction on the ADC map and presenting no enhancement on the portal venous phase after contrast injection. These nodules are hypointense on the hepatobiliary phase. Such features and the lack of communications with the biliary tree demonstrated on maximum intensity projection images from magnetic resonance cholangiography are consistent with multiple biliary hamartomas (von Meyenburg complex). A: In-phase T1-weighted image; B: Out-of-phase T1-weighted image; C: T2-weighted image; D: 3D maximum intensity projection reconstruction magnetic resonance cholangiopancreatography; E: High b-value diffusion weighted imaging; F: ADC map; G: Portal venous phase magnetic resonance imaging (MRI); H: Hepatobiliary phase MRI.