CONCLUSION
This retrospective study found that in pediatric and adolescent HL patients treated with first-line chemotherapy, the predictive value of18F-FDG-PET/CT for clinical evaluation was influenced by the interpretation criteria adopted. DC-4 showed superior diagnostic performance compared with the IHPC and DC-3. The diagnostic performance of post-treatment PET/CT was higher than that of interim PET/CT. Due to the limitations of a small sample size and a retrospective study design, the above results need to be verified in randomized prospective trials.