AdenomaAdenoma, PleomorphicAdenoma, VillousPituitary NeoplasmsAdrenocortical AdenomaAdenoma, Liver CellAdenoma, ChromophobeColorectal NeoplasmsGrowth Hormone-Secreting Pituitary AdenomaColonic PolypsACTH-Secreting Pituitary AdenomaColonoscopyAdenoma, AcidophilAdenomatous PolypsProlactinomaAdenoma, BasophilAdrenal Cortex NeoplasmsAdenomatous Polyposis ColiAcromegalyCushing SyndromeGenes, APCReproducibility of ResultsColonic NeoplasmsHyperparathyroidismSalivary Gland NeoplasmsIntestinal NeoplasmsHyperplasiaImmunohistochemistryNeoplasms, Multiple PrimaryPituitary ACTH HypersecretionAdrenal Gland NeoplasmsParotid NeoplasmsCarcinomaHyperaldosteronismSphenoid BoneRisk FactorsQuestionnairesDuodenal NeoplasmsAdrenocorticotropic HormoneTreatment OutcomeTime FactorsAdenocarcinomaPituitary GlandPrecancerous ConditionsHyperparathyroidism, PrimaryThyroid NeoplasmsProspective StudiesSella TurcicaSigmoidoscopyWeights and MeasuresMagnetic Resonance ImagingRetrospective StudiesSensitivity and SpecificityFollow-Up StudiesHuman Growth HormoneChoristomaRectal NeoplasmsColonPituitary ApoplexyPituitary HormonesIntestinal MucosaUrethaneParathyroidectomyCross-Sectional StudiesAdenomatous Polyposis Coli ProteinProlactinPsychometricsTumor Markers, BiologicalAdenoma, Bile DuctUnited StatesCohort StudiesColon, DescendingAdrenalectomy