Neuroendocrine TumorsCarcinoma, NeuroendocrineCarcinoid TumorChromogranin AOctreotidePancreatic NeoplasmsGastrointestinal NeoplasmsCarcinomaNeurosecretory SystemsReceptors, SomatostatinNeuroendocrine CellsDigestive System NeoplasmsChromograninsTumor Markers, BiologicalCarcinoma, Squamous CellIntestinal NeoplasmsSomatostatinCarcinoma, HepatocellularIleal NeoplasmsVipomaLiver NeoplasmsImmunohistochemistryBronchial NeoplasmsGastrinomaEndocrine Gland NeoplasmsCell Line, TumorGlucagonomaRadiopharmaceuticalsCarcinoma, Small CellCarcinoma, Islet CellTumor BurdenLung NeoplasmsParagangliomaPheochromocytomaOrganometallic CompoundsCarcinoma in SituCarcinoma, MedullaryNeoplasm StagingNeoplasm MetastasisAdenocarcinomaIndium RadioisotopesDuodenal NeoplasmsPrognosisLutetiumApudomaCarcinoma, PapillaryTomography, X-Ray ComputedInsulinomaTreatment OutcomeMultiple Endocrine Neoplasia Type 1Carcinoma, Merkel CellCarcinoma, Large CellYttrium RadioisotopesThyroid NeoplasmsSomatostatinomaSynaptophysinRetrospective StudiesAdrenal Gland NeoplasmsAntineoplastic AgentsStomach NeoplasmsPositron-Emission TomographyGene Expression Regulation, Neoplastic3-IodobenzylguanidineTumor Necrosis Factor-alphaKi-67 AntigenNeuroectodermal TumorsCarcinoma, Ductal, BreastTumor Suppressor Protein p53Gallium RadioisotopesCell ProliferationPentetic AcidParaganglioma, Extra-AdrenalNeoplasm ProteinsCommon Bile Duct NeoplasmsZollinger-Ellison SyndromeRNA, MessengerLymphatic MetastasisSurvival AnalysisNervous System NeoplasmsNeoplasms, Multiple PrimaryThymus NeoplasmsGenes, Tumor SuppressorNeoplasms, ExperimentalNeoplasms, Complex and MixedAmpulla of VaterDNA, NeoplasmPyrrolesCarcinoma, Basal CellSkin NeoplasmsDisease ProgressionSurvival RatePhosphopyruvate HydrataseReverse Transcriptase Polymerase Chain ReactionFatal OutcomeMice, NudeNeuroendocrine Secretory Protein 7B2Neovascularization, PathologicAdenoma, Islet CellCarcinoma, Transitional CellSensitivity and Specificity