Hamartoma Syndrome, MultiplePTEN PhosphohydrolasePhosphoric Monoester HydrolasesGerm-Line MutationChromosomes, Human, Pair 10Intestinal PolyposisTumor Suppressor ProteinsProteus SyndromeNeoplastic Syndromes, HereditaryPolypsCaliciviridaeArteriovenous MalformationsSyndromeThyroid NeoplasmsGenes, Tumor SuppressorDNA Mutational AnalysisPedigreeCerebellar CortexNeoplasms, Multiple PrimaryLoss of HeterozygosityRotavirusBreast NeoplasmsProtein Tyrosine PhosphatasesHypertrophyMutationPhenotypeGenetic Predisposition to Disease