(68)GA-FAPI-04 PET/CT Versus F-18-FDG PET/CT in Imaging of Malignant Mixed Germ Cell Testicular Tumor

F-18-FDG PET/CT imaging was performed for restaging in in a 16-year-old boy who was operated on for right testicular tumor and was diagnosed with malignant mixed germ cell tumor. Mild FDG uptake was observed in 2 nodules in both lungs and retroperitoneal lymph node in the abdomen. Ga-68-FAPI (fibroblast activation protein inhibitor) 04 PET/CT showed moderate uptake of FAPI in lung nodules and retroperitoneal lymph node. In this case, Ga-68-FAPI-04 PET/CT was shown to be superior to F-18-FDG PET/CT in the evaluation of malignant mixed germ cell testicular tumor metastases.

Automated summary

F-18-FDG PET/CT and Ga-68-FAPI 04 PET/CT were used for restaging in a 16-year-old boy with malignant mixed germ cell tumor. Results showed that Ga-68-FAPI-04 PET/CT was superior to F-18-FDG PET/CT in the evaluation of metastases in the testicular tumor.