Neoplasms, Germ Cell and EmbryonalTesticular NeoplasmsGerminomaGerm CellsSeminomaEndodermal Sinus TumorDysgerminomaTeratomaGranulosa Cell TumorGiant Cell Tumor of BoneMediastinal NeoplasmsRetroperitoneal NeoplasmsGiant Cell TumorsCarcinoma, EmbryonalTestisSertoli Cell TumorGranular Cell Tumoralpha-FetoproteinsSpermatogenesisLeydig Cell TumorBleomycinCisplatinTumor Markers, BiologicalEtoposideChoriocarcinomaMesonephromaOvarian NeoplasmsRetroperitoneal SpaceSeminiferous TubulesSpermatozoaIfosfamideAntineoplastic Combined Chemotherapy ProtocolsImmunohistochemistrySpermatogoniaNeoplasms, Gonadal TissueOrchiectomyGonadoblastomaSertoli CellsSalvage TherapySertoli-Leydig Cell TumorCombined Modality TherapyCell Line, TumorPinealomaTeratocarcinomaMixed Tumor, MalignantChromosomes, Human, Pair 12Adenoma, Islet CellSpermatocytesCryptorchidismBrain NeoplasmsNeoplasms, Multiple PrimaryTumor BurdenTumor Necrosis Factor-alphaSpermatidsChorionic Gonadotropin, beta Subunit, HumanChorionic GonadotropinGonadsNeoplasm Recurrence, LocalPrognosisOctamer Transcription Factor-3Growth Differentiation Factor 3Treatment OutcomeCentral Nervous System NeoplasmsProto-Oncogene Proteins c-kitCarboplatinRNA, MessengerNeoplasm StagingRetrospective StudiesThoracic NeoplasmsBone NeoplasmsGenes, Tumor SuppressorNeoplasm MetastasisSacrococcygeal RegionOvaryNeoplasms, ExperimentalSeminiferous EpitheliumReverse Transcriptase Polymerase Chain ReactionDog DiseasesAbdominal NeoplasmsNeoplasm ProteinsCell DifferentiationTumor Suppressor Protein p53Neuroectodermal Tumors, Primitive, PeripheralWilms TumorLymph Node ExcisionLithiasisCarcinoma in SituMolecular Sequence DataChlordanVinblastineNeoplasm, ResidualMeiosisDNA, NeoplasmMastocytomaGene Expression Regulation, DevelopmentalDisease-Free SurvivalBase SequenceSurvival AnalysisTime FactorsNeoplasms, Second Primary