Neoplasms, Germ Cell and EmbryonalEndodermal Sinus TumorGerminomaTesticular NeoplasmsDysgerminomaSeminomaTeratomaBleomycinalpha-FetoproteinsGerm CellsMediastinal NeoplasmsCisplatinOvarian NeoplasmsCombined Modality TherapyPrognosisGranulosa Cell TumorGiant Cell Tumor of BoneRetroperitoneal NeoplasmsGiant Cell TumorsCarcinoma, EmbryonalTestisSertoli Cell TumorGranular Cell TumorSpermatogenesisLeydig Cell TumorTumor Markers, BiologicalEtoposideChoriocarcinomaMesonephromaRetroperitoneal SpaceSeminiferous TubulesSpermatozoaIfosfamideAntineoplastic Combined Chemotherapy ProtocolsImmunohistochemistrySpermatogoniaNeoplasms, Gonadal TissueOrchiectomyGonadoblastomaSertoli CellsSalvage TherapySertoli-Leydig Cell TumorCell Line, TumorPinealomaTeratocarcinomaMixed Tumor, MalignantChromosomes, Human, Pair 12Adenoma, Islet CellSpermatocytesCryptorchidismBrain NeoplasmsNeoplasms, Multiple PrimaryTumor BurdenTumor Necrosis Factor-alphaSpermatidsChorionic Gonadotropin, beta Subunit, HumanChorionic GonadotropinGonadsNeoplasm Recurrence, LocalOctamer 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, Neoplasm