Carcinoid TumorMalignant Carcinoid SyndromeCarcinoid Heart DiseaseIleal NeoplasmsBronchial NeoplasmsAppendiceal NeoplasmsGastrointestinal NeoplasmsNeuroendocrine TumorsHydroxyindoleacetic AcidIntestinal NeoplasmsOctreotideChromograninsTumor Markers, BiologicalChromogranin ACell Line, TumorACTH Syndrome, EctopicTumor BurdenNeoplasmsTumor Necrosis Factor-alphaDuodenal NeoplasmsThymus NeoplasmsNeoplasms, ExperimentalLiver NeoplasmsNeoplasm MetastasisLung NeoplasmsWilms TumorParaneoplastic Endocrine SyndromesCarcinoma, NeuroendocrineAdenocarcinomaGenes, Tumor SuppressorProctoscopyCommon Bile Duct NeoplasmsImmunohistochemistryTomography, X-Ray ComputedPancreatic NeoplasmsTumor Suppressor Protein p53Indium RadioisotopesTreatment OutcomeEndocrine Gland NeoplasmsAntineoplastic AgentsStomach NeoplasmsEnterochromaffin CellsSomatostatinBrain NeoplasmsAmpulla of VaterTumor MicroenvironmentNeovascularization, Pathologic3-IodobenzylguanidineJejunal NeoplasmsReceptors, SomatostatinNeoplasms, Multiple PrimaryTumor Suppressor ProteinsCell ProliferationMammary Neoplasms, ExperimentalCushing SyndromeAppendixTransplantation, HeterologousXenograft Model Antitumor AssaysGastrinsRetrospective StudiesColonic NeoplasmsKidney NeoplasmsTime FactorsDuodenoscopyParaganglioma, Extra-AdrenalDigestive System NeoplasmsEar NeoplasmsNeoplasm StagingPolypsDNA, NeoplasmRectal NeoplasmsGlomus TumorDose-Response Relationship, DrugMice, Inbred BALB CMice, NudeAppendectomySynaptophysinAntibodies, MonoclonalPhosphopyruvate HydrataseImmunoenzyme TechniquesAdenoma, Islet CellFlushingAntigens, NeoplasmOvarian NeoplasmsEnterochromaffin-like CellsGastrointestinal Stromal TumorsLymphatic MetastasisRNA, MessengerCell DivisionNeoplasm ProteinsNeoplasm Recurrence, LocalMultiple Endocrine Neoplasia Type 1Disease ProgressionPentetic AcidSignal TransductionPrognosisIodobenzenesCarcinoma, Small CellFibrosarcomaAntineoplastic Combined Chemotherapy Protocols