AdenocarcinomaNeuroendocrine TumorsCarcinoma, NeuroendocrineCarcinomaNeurosecretory SystemsNeuroendocrine CellsCarcinoma, Squamous CellCarcinoma, HepatocellularPancreatic NeoplasmsLung NeoplasmsImmunohistochemistryAdenocarcinoma, MucinousCarcinoma in SituChromogranin AEsophageal NeoplasmsTumor Markers, BiologicalStomach NeoplasmsCarcinoid TumorChromograninsLiver NeoplasmsCarcinoma, PapillaryAdenocarcinoma, PapillaryCarcinoma, Small CellCarcinoma, Pancreatic DuctalPrognosisCell Line, TumorNeoplasm StagingAdenocarcinoma, Bronchiolo-AlveolarGene Expression Regulation, NeoplasticCarcinoma, Large CellColonic NeoplasmsBarrett EsophagusCarcinoma, Ductal, BreastGastrointestinal NeoplasmsTumor Cells, CulturedNeoplasm InvasivenessCarcinoma, Basal CellNeuroendocrine Secretory Protein 7B2Neoplasms, Multiple PrimaryIntestinal NeoplasmsCarcinoma, BronchogenicCardiaCarcinoma, EndometrioidCarcinoma, MedullaryCarcinoma, Transitional CellLymphatic MetastasisNeoplasm MetastasisCarcinoma, AdenosquamousImmunoenzyme TechniquesSynaptophysinCarcinoma, Merkel CellCarcinoma, Signet Ring CellRNA, MessengerNeoplasm ProteinsCarcinoma, Adenoid CysticPrecancerous ConditionsRetrospective StudiesOctreotideThyroid NeoplasmsEndometrial NeoplasmsCarcinoma, Intraductal, NoninfiltratingBreast NeoplasmsDNA, NeoplasmAntineoplastic AgentsIleal NeoplasmsSurvival RateTreatment OutcomeMice, NudeSurvival AnalysisReverse Transcriptase Polymerase Chain ReactionBronchial NeoplasmsOvarian NeoplasmsNeoplasm TransplantationDigestive System NeoplasmsKeratin-7Common Bile Duct NeoplasmsFatal OutcomeAdenocarcinoma, Clear CellColorectal NeoplasmsCarcinoma, LobularCarcinoma, Non-Small-Cell LungAmpulla of VaterDuodenal NeoplasmsTissue Array AnalysisDisease ProgressionUterine Cervical NeoplasmsNeoplasm Recurrence, LocalNasopharyngeal NeoplasmsReceptors, SomatostatinCell ProliferationAntigens, NeoplasmEsophagogastric JunctionGallbladder NeoplasmsTomography, X-Ray ComputedRectal NeoplasmsMammary Neoplasms, ExperimentalCarcinoma, MucoepidermoidBiopsyTumor Suppressor Protein p53Time Factors