Incidental FindingsHysterosalpingographyTomography, X-Ray ComputedSensitivity and SpecificityRetrospective StudiesAdmitting Department, HospitalNeoplasms, Unknown PrimaryUnnecessary ProceduresBiopsy, NeedlePreoperative CareMagnetic Resonance ImagingBiopsy, Fine-NeedleClinical Laboratory TechniquesCurettageBiopsyPredictive Value of TestsLaparoscopyDelayed DiagnosisPathology, SurgicalAbdominal PainCytogeneticsFatal OutcomeProspective StudiesPositron-Emission TomographyTreatment OutcomeSyncopeFluorodeoxyglucose F18Medical History TakingFollow-Up StudiesFalse Positive ReactionsInfertility, FemalePhysical ExaminationHistamine AntagonistsReproducibility of ResultsFeverDiagnostic ErrorsDiagnostic ImagingEndometriosisAdrenal Gland NeoplasmsColonoscopySyndromeGastrointestinal HemorrhagePrognosisMagnetic Resonance AngiographyRadiopharmaceuticalsRecurrenceFalse Negative ReactionsRisk FactorsEfficiency, OrganizationalRisk AssessmentTime FactorsMass ScreeningNeoplasm StagingMammographyUltrasonographyAcute DiseaseMolecular StructurePatient SelectionBreast NeoplasmsPractice Guidelines as TopicVenous ThrombosisContrast MediaReferral and ConsultationStereoisomerismInfant, NewbornThyroid NeoplasmsChronic DiseasePilot ProjectsROC CurveTumor Markers, BiologicalStrokeImmunohistochemistryPregnancyBiological MarkersPrevalenceLung NeoplasmsBone MarrowElectrocardiographyAdenocarcinomaCohort StudiesPancreatic NeoplasmsIncidenceAlgorithmsChi-Square DistributionEchocardiographyAge FactorsCase-Control StudiesSeverity of Illness IndexMutationSurvival RateUnited States