Pre-operative images of the liver. (A) Contrast-enhanced computed tomography (CT) in axial plane demonstrating a large irregular tumour mass, with central calcifications, in all segments of the right liver lobe and also affecting liver segments 1 and 4. (B) CT in coronal plane illustrating that the mass surrounds vena cava inferior. (C) Magnetic resonance imaging (MRI) T2-weighted in transversal plane depicts the typical features of Echinococcus multilocularis as a microcystic mass. (d) MRI T2-weighted image in coronal plane showing both the microcystic appearance of the tumour and also visualizing the localization above the gallbladder and the extrahepatic bile ducts.