Neuroendocrine TumorsPancreatic NeoplasmsCarcinoma, NeuroendocrineVipomaGlucagonomaChromogranin AGastrinomaOctreotidevon Hippel-Lindau DiseaseInsulinomaMultiple Endocrine Neoplasia Type 1SomatostatinomaCarcinoma, Islet CellPyrrolesNeoplasm MetastasisCarcinoid TumorPancreaticoduodenectomyReceptors, SomatostatinEndosonographyIndolesImmunohistochemistrySirolimusLiver NeoplasmsPancreasGastrointestinal NeoplasmsNeurosecretory SystemsTumor Markers, BiologicalSomatostatinAntineoplastic AgentsTomography, X-Ray ComputedPrognosisLymphatic MetastasisTreatment OutcomeNeuroendocrine CellsDigestive System NeoplasmsRetrospective StudiesPancreatectomyChromograninsPancreatic CystCell Line, TumorLung NeoplasmsIntestinal NeoplasmsIleal NeoplasmsEndocrine Gland NeoplasmsBronchial NeoplasmsNeoplasm InvasivenessRadiopharmaceuticalsTumor BurdenParagangliomaAdenocarcinomaGene Expression Regulation, NeoplasticCell MovementNeoplasm StagingOrganometallic CompoundsPheochromocytomaMelanoma, ExperimentalMice, NudeNeovascularization, PathologicNeoplasm TransplantationIndium RadioisotopesCell ProliferationNeoplasms, ExperimentalDuodenal Neoplasms