Leydig Cell TumorLeydig CellsTesticular NeoplasmsYolk SacSertoli Cell TumorNeoplasms, Germ Cell and EmbryonalSertoli CellsSeminomaGerminomaSertoli-Leydig Cell TumorTestisGerm CellsEndodermal Sinus TumorGranulosa Cell TumorGiant Cell Tumor of BoneGiant Cell TumorsEgg YolkGranular Cell TumorDiethylstilbestrolTeratomaTestosteroneDysgerminomaMediastinal NeoplasmsDog DiseasesSpermatogenesisRetroperitoneal NeoplasmsSeminiferous TubulesImmunohistochemistryCarcinoma, EmbryonalNeoplasms, ExperimentalAromataseMesonephromaTumor Markers, Biologicalalpha-FetoproteinsChorionic GonadotropinOvarian NeoplasmsBleomycinCisplatinChoriocarcinomaEtoposideCryptorchidismSpermatozoaSeminiferous EpitheliumCell Line, TumorSpermatogoniaAdenoma, Islet CellRNA, MessengerTumor Necrosis Factor-alphaTumor BurdenOrchiectomySpermatidsRetroperitoneal SpaceSpermatocytes3-Hydroxysteroid DehydrogenasesAntineoplastic Combined Chemotherapy ProtocolsReverse Transcriptase Polymerase Chain ReactionNeoplasms, Gonadal TissueLuteinizing HormoneCell DifferentiationIfosfamideReceptors, LHBrain NeoplasmsMesylatesCombined Modality TherapyBone NeoplasmsGenes, Tumor SuppressorGonadsWilms TumorSalvage TherapyTime Factors