Hereditary Breast and Ovarian Cancer SyndromeOvarian NeoplasmsGenes, BRCA1BRCA2 ProteinBRCA1 ProteinGenes, BRCA2Genetic Predisposition to DiseaseNeoplastic Syndromes, HereditaryGenetic TestingGerm-Line MutationGenetic CounselingSyndromeBreast NeoplasmsPedigreeGenes, DominantMutationBreastHeterozygoteDNA Mutational AnalysisPolycystic Kidney, Autosomal DominantFamily HealthNeoplasm ProteinsFounder EffectNeoplasms, Glandular and EpithelialGenetic LinkageBreast Neoplasms, MaleAge of OnsetColorectal Neoplasms, Hereditary NonpolyposisGenotypeRisk FactorsGene Expression Regulation, Neoplasticvon Hippel-Lindau DiseasePhenotypeExonsDNA, NeoplasmFamilyCell Line, TumorCarcinoma, Ductal, BreastMastectomyHamartoma Syndrome, MultiplePolymerase Chain ReactionMutation, MissenseBreast Diseases