SeminomaTestisTesticular NeoplasmsDysgerminomaNeoplasms, Germ Cell and EmbryonalOrchiectomyRete TestisCryptorchidismSpermatogenesisSertoli Cell TumorMediastinal NeoplasmsRetroperitoneal NeoplasmsSertoli CellsMesonephromaGerminomaBleomycinTesticular DiseasesSpermatocytesTeratomaLeydig CellsSpermatozoaCarcinoma, EmbryonalSpermatidsCisplatinRadiotherapy, AdjuvantSpermatogoniaImmunohistochemistryEtoposideChorionic Gonadotropin, beta Subunit, HumanGerm Cells