Successful treatment of stage IIIB intrahepatic cholangiocarcinoma using neoadjuvant therapy with the PD-1 inhibitor camrelizumab: A case report

Figure 1 Pre-operative liver computed tomography and magnetic resonance imaging scan. A: Axial portal phase computed tomography (CT) showed the tumors (white arrow) are located in the right lobe, with the longest diameter being about 20 cm; hilar lymph metastasis node (orange arrow) is found; B: Axial arterial phase CT at different levels reveals the tumors (white arrow) and the hilar lymph node metastasis(orange arrow); C and D: Axial diffusion-weighted imaging image at different levels reveals the tumors (white arrow) and the hilar lymph node metastasis (orange arrow).