“…There is scarce data of the usefulness of the PET/CT FDG in NSGCT with inconclusive results 12,[17][18][19] , Oechsle et al conducted a multicenter study, where they found PET can predict viable tumors in 56% of cases, and has an overall sensitivity and specificity of 70% and 48, respectively 14 . In our study, 80% of PET's were positive with teratoma being the most common finding.…”