Case Report
Copyright ©The Author(s) 2021.
World J Clin Cases. Feb 6, 2021; 9(4): 864-870
Published online Feb 6, 2021. doi: 10.12998/wjcc.v9.i4.864
Figure 1
Figure 1 Changes of serum calcitonin and carcinoembryonic antigen levels at each follow-up visit after the initial surgery. The dashed lines indicate reference values. CEA: Carcinoembryonic antigen; CT: Calcitonin; RFA: Radiofrequency ablation.