Due to the high specificity and sensitivity of the hsa-miR-371-373 and hsa-miR-302/367 clusters as biomarkers for the diagnosis and prognosis of TGCT, in the future, these miRNAs could displace classical markers such as lactate dehydrogenase (LDH), human alpha-fetoprotein (AFP), and human chorionic gonadotropin (HCG) [18,19]. Here, AFP is linked to testicular germ cell tumor.