LymphomaHodgkin DiseaseLymphoma, B-CellLymphoma, Non-HodgkinLymphoma, T-CellLymphoma, Large B-Cell, DiffuseLymphoma, FollicularBurkitt LymphomaLymphoma, B-Cell, Marginal ZoneReed-Sternberg CellsLymphoma, Mantle-CellLymphoma, Large-Cell, AnaplasticLymphoma, T-Cell, CutaneousLymphoma, AIDS-RelatedLymphoma, T-Cell, PeripheralAntigens, CD30VincristineLymphoma, Large-Cell, ImmunoblasticPrednisoneAntigens, CD20Antibodies, Monoclonal, Murine-DerivedDoxorubicinHerpesvirus 4, HumanAntineoplastic Combined Chemotherapy ProtocolsBleomycinCyclophosphamideTranslocation, GeneticEpstein-Barr Virus InfectionsLymphoma, Extranodal NK-T-CellB-LymphocytesImmunophenotypingImmunohistochemistryLymph NodesProcarbazineChromosomes, Human, Pair 14PrognosisTreatment OutcomeProto-Oncogene Proteins c-bcl-6Chromosomes, Human, Pair 18Gene RearrangementAntibodies, MonoclonalRemission InductionMediastinal NeoplasmsVinblastineCombined Modality TherapyRetrospective StudiesEtoposideNeoplasm StagingLeukemia, Lymphocytic, Chronic, B-CellSurvival RateTransplantation, AutologousThymus NeoplasmsGerminal CenterCentral Nervous System NeoplasmsAntineoplastic AgentsDisease-Free SurvivalCell Line, TumorDacarbazineImmunoglobulin Heavy ChainsSurvival AnalysisTumor Markers, BiologicalFatal OutcomeEye NeoplasmsTumor Cells, CulturedPseudolymphomaMechlorethamineLymphoproliferative DisordersNose NeoplasmsGene Rearrangement, B-Lymphocyte, Heavy ChainGene Expression Regulation, NeoplasticRecurrenceGenes, ImmunoglobulinPolymerase Chain ReactionNeoplasms, Second PrimaryDNA, NeoplasmMycosis FungoidesLeukemiaSkin NeoplasmsIn Situ Hybridization, FluorescenceBiopsySalvage TherapyGene Rearrangement, B-LymphocyteFlow CytometryNeoplasm ProteinsT-LymphocytesFollow-Up StudiesLymphocytesAntigens, CDApoptosisPositron-Emission TomographyGenes, mycBase SequenceRadioimmunotherapyProto-Oncogene Proteins c-bcl-2Leukemia, B-CellGenes, bcl-2Lymphatic DiseasesMethotrexateCytarabineViral Matrix Proteins