Fig. 1

Preoperative CE-CT and EOB-MRI images. a Plain CT of the liver showed a 48×43 mm low-density lesion in the liver. b, c CE-CT showed contrast enhancement in the arterial phase (b) and hypoattenuation in the delayed phase (c). d–h EOB-MRI of the liver. The lower and peripheral parts of the lesion showed a lower signal in T1 weighted out-of-phase images (e) compared with in-phase images (d) (arrowhead). The lesion showed a low signal in the hepatobiliary phase (f). Fat-suppressed T2-weighted image (g) and diffusion-weighted image (h) showed a high signal in the upper and central parts of the lesion (arrowhead)