In this study, we described the identification and characterization of KPNA2 expression in several common pathological types of OMGCTs, including 20 yolk sac tumors, 38 immature teratomas, 11 dysgerminomas, 3 embryonal carcinomas, 10 mixed germ cell tumors, 8 mature teratomas with malignant transformation, at both transcription and translation levels. Here, KPNA2 is linked to yolk sac tumor.