Case Report
Copyright ©The Author(s) 2021.
World J Clin Cases. Apr 6, 2021; 9(10): 2281-2288
Published online Apr 6, 2021. doi: 10.12998/wjcc.v9.i10.2281
Figure 1
Figure 1 Timeline of the case. PET-CT: Positron emission tomography-computed tomography; PTCD: Percutaneous transhepatic cholangial drainage.
Figure 2
Figure 2 Positron emission tomography-computed tomography. A-C: Radioactive concentration of 18F-fluorodeoxyglucose on the tumor rim, and no radioactive concentration was observed in other areas of the body.
Figure 3
Figure 3 Positron emission tomography-computed tomography. A-D: Multiple metastases located in the liver, mediastinum and peritoneum.
Figure 4
Figure 4 Positron emission tomography-computed tomography. A-C: Multiple metastases had nearly disappeared.
Figure 5
Figure 5 Immunohistological staining. A-D: There was high expression of CD8, low expression of CD4 and little expression of CD68 in the tumor. Up to 90% of tumor cells expressed programmed death ligand 1 (PD-L1).