Hereditary Breast and Ovarian Cancer SyndromeOvarian NeoplasmsNeoplastic Syndromes, HereditaryGenes, BRCA1BRCA2 ProteinGenetic CounselingBRCA1 ProteinGerm-Line MutationGenes, BRCA2Genetic TestingPedigreeBreast NeoplasmsGenetic Predisposition to DiseaseSyndromeMutationGenes, Dominantvon Hippel-Lindau DiseaseBreastHeterozygoteDNA Mutational AnalysisFamily HealthLi-Fraumeni SyndromeNeoplasmsColorectal Neoplasms, Hereditary NonpolyposisPolycystic Kidney, Autosomal DominantAge of OnsetNeoplasm ProteinsNeoplasms, Glandular and EpithelialVon Hippel-Lindau Tumor Suppressor ProteinRisk FactorsGenes, Tumor SuppressorFounder EffectBreast Neoplasms, MaleRisk AssessmentGene Expression Regulation, NeoplasticGenetic LinkageTumor Suppressor ProteinsEarly Detection of CancerCell Line, TumorDNA, NeoplasmColorectal NeoplasmsGenotypeMastectomyExonsPhenotypeCarcinomaPolymerase Chain ReactionBreast DiseasesNeoplasm InvasivenessFamilyCarcinoma, Ductal, BreastCA-125 AntigenPrognosis