Lymphoma, T-Cell, CutaneousLymphoma, B-CellMycosis FungoidesSkin NeoplasmsLymphomatoid PapulosisBurkitt LymphomaLymphomaB-LymphocytesSezary SyndromePanniculitisTumor Cells, CulturedLymphoma, Large B-Cell, DiffuseLymphoma, T-CellApoptosisAntigens, CD30Lymphoma, Large-Cell, AnaplasticLymphoma, Non-HodgkinLymphoma, FollicularAntigens, CD56ImmunophenotypingSkin DiseasesLymphoma, B-Cell, Marginal ZoneSocieties, MedicalLymphoma, Mantle-CellNeoplasm StagingImmunohistochemistryLymphoma, AIDS-RelatedB-Lymphocyte SubsetsLymphoma, T-Cell, PeripheralSkinPrognosisEuropeHodgkin Disease