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A case of left hemihepatectomy in a patient with left hepatic cholangiocarcinoma. A: CT showing the location of tumour in the left extrahepatic lobe; B: 3D model based on CT; C: 3D model displayed on Virtual Reality; D: hepatic tangent marked by fluorescent signals; E: left and right hepatic demarcation line; F: tumour not developed under fluorescent.
