Fig. 2

Preoperative magnetic resonance imaging findings. The tumor (arrow head) adjacent to the scar of radiofrequency ablation (arrow) exhibits low intensity on the T1-weighted image (a) and a slightly high intensity on T2- (b) and diffusion-weighted images (c). d Hepatobiliary phase of sagittal scan shows a low-intensity mass (asterisk) that continued from the tumor into the right hepatic duct