Sezary SyndromeMycosis FungoidesLymphoma, T-Cell, CutaneousDermatitis, ExfoliativeSkin NeoplasmsSyndromeReceptors, KIR3DL2Antigens, CD7SkinReceptors, KIR2DL2PhotopheresisDipeptidyl Peptidase 4Lysosomal-Associated Membrane Protein 3Lymphatic DiseasesT-LymphocytesPUVA TherapyPentostatinImmunophenotypingPruritusGene Rearrangement, beta-Chain T-Cell Antigen ReceptorFlow CytometryLymphoma, T-CellNeoplastic Cells, CirculatingSkin DiseasesSkin Aging