Neoplasms, Multiple PrimaryPrimary MyelofibrosisPolycythemia VeraThrombocythemia, EssentialJanus Kinase 2Neoplasms, Second PrimaryMyeloproliferative DisordersAdenomatosis, PulmonarySkin NeoplasmsHematopoiesis, ExtramedullarySplenomegalyGerm-Line MutationLi-Fraumeni SyndromePaget's Disease, MammaryMelanomaThrombocytosisReticulinNeoplastic Syndromes, HereditaryOsteosclerosisMegakaryocytesBone MarrowLung NeoplasmsGastrointestinal NeoplasmsGenes, p16Receptors, ThrombopoietinMutationSoft Tissue NeoplasmsOsteoarthropathy, Primary HypertrophicDNA Mutational AnalysisPrognosisGenes, p53OsteosarcomaBreast NeoplasmsRegistriesSarcomaColonic NeoplasmsPedigreeGenetic Predisposition to DiseaseHead and Neck NeoplasmsCarcinoma, Squamous CellPancreatic NeoplasmsRiskPancytopeniaThrombopoietinRetrospective StudiesAdenocarcinomaIncidenceNeoplasmsFollow-Up StudiesRisk FactorsNeoplasm StagingPyrazolesPipobromanNeoplasms, Cystic, Mucinous, and SerousAnemia, MyelophthisicExonsTime FactorsSplenectomyBone Marrow NeoplasmsMyelodysplastic-Myeloproliferative DiseasesHepatomegalyFatal OutcomeJanus Kinase 1Tumor Suppressor Protein p53Bone Marrow ExaminationPolycythemiaLeukemia, Megakaryoblastic, AcuteThrombocytopeniaPlatelet CountThorium DioxideAnemiaSpleenJanus KinasesDanazolThalidomideLeukemiaHematologyLeukemia, Myeloid, Chronic, Atypical, BCR-ABL NegativeKaryotypingKidney NeoplasmsHematopoietic Stem CellsMethenoloneAntigens, CD34Protein Kinase InhibitorsHypereosinophilic SyndromeHematologic Neoplasms