Hematopoiesis, ExtramedullaryPlasmacytomaSarcoma, MyeloidSpinal Cord NeoplasmsPrimary MyelofibrosisLeukemic InfiltrationTuberculomaSpinal Cord CompressionIophendylateLaminectomyMultiple MyelomaBone MarrowLeukemia, Myeloid, AcuteSplenomegalyThoracic VertebraeHemangioma, CapillarySpinal Cord DiseasesHematopoiesisPolycythemia VeraSpleenNeurilemmomaMyeloproliferative DisordersThoracic NeoplasmsMagnetic Resonance ImagingRecurrenceMyelopoiesisHemoglobin EAnemia, MyelophthisicFatal OutcomeNeoplasms, Plasma CellSpinal NeoplasmsBone Marrow TransplantationMeningeal NeoplasmsMeningiomaBronchogenic CystOsteopetrosisMediastinumSoft Tissue Neoplasmsbeta-ThalassemiaLeukemia, Plasma CellLeukemia, Myelomonocytic, ChronicGingival NeoplasmsTechnetium Tc 99m Sulfur ColloidHematopoietic Stem CellsMediastinal NeoplasmsTomography, X-Ray ComputedPrecursor Cell Lymphoblastic Leukemia-LymphomaHemangioblastomaBlast CrisisHemothoraxThalassemiaCauda EquinaGraft vs Leukemia EffectPolyradiculopathyLeukemia, ProlymphocyticParaproteinemiasThalidomideBone Marrow CellsBone Marrow NeoplasmsTransplantation, HomologousRespiratory Tract NeoplasmsAnemia, HemolyticFracture Fixation, IntramedullaryArachnoid CystsPlasma CellsLeukemia, MyeloidTuberculosis, MeningealTreatment OutcomeErythropoiesisSplenectomyLeukemia, Myelogenous, Chronic, BCR-ABL PositiveThoraxSpinal CordEchinococcosisBone NeoplasmsKnee ProsthesisRetrospective StudiesHematopoietic Stem Cell TransplantationLeukocyte TransfusionDura MaterImmunoglobulin lambda-ChainsRemission InductionLeukemiaParaplegiaDog DiseasesImmunohistochemistryArthroplasty, Replacement, KneeSurgical Procedures, Minimally InvasiveImmunophenotypingDecompression, SurgicalMegakaryocytesCervical VertebraeCombined Modality TherapyAsparaginasePolycythemiaBoronic AcidsAntigens, CD56LiverPyrazinesFollow-Up Studies