Endoscopy, GastrointestinalGastrointestinal Stromal TumorsEndosonographyLipomaGastroscopyChoristomaStomach NeoplasmsGastric MucosaEndoscopyDuodenal NeoplasmsGastrointestinal NeoplasmsCarcinoid TumorElectrosurgeryEndoscopy, Digestive SystemStomach DiseasesLeiomyomaColonoscopyIntestinal MucosaTumor Markers, BiologicalTomography, X-Ray ComputedTumor BurdenTumor Necrosis Factor-alphaLaparoscopySubmucous PlexusCell Line, TumorEsophageal NeoplasmsExocrine GlandsWilms TumorDissectionNeoplasms, ExperimentalGenes, Tumor SuppressorTumor Suppressor Protein p53Neuroendocrine TumorsTumor Suppressor ProteinsBrain NeoplasmsTumor MicroenvironmentAdenocarcinomaMammary Neoplasms, ExperimentalNeovascularization, PathologicTransplantation, HeterologousNeoplasm MetastasisColonic NeoplasmsCell ProliferationMice, Inbred BALB CXenograft Model Antitumor AssaysMucous MembraneAntigens, NeoplasmImmunohistochemistryRNA, MessengerNeoplasmsMice, Inbred C57BLNeoplasm ProteinsNeoplasm StagingCell DivisionCarcinoma, Ehrlich TumorLiver NeoplasmsTime FactorsFibrosarcomaKidney NeoplasmsCell Transformation, NeoplasticTreatment OutcomeSkin NeoplasmsOvarian NeoplasmsGliomaReverse Transcriptase Polymerase Chain ReactionSignal TransductionDNA, NeoplasmCarcinoma, Squamous CellMice, SCIDSarcoma, ExperimentalDisease ProgressionLymphatic MetastasisPancreatic NeoplasmsTracheaRhabdoid TumorMelanoma, ExperimentalAdenomaGranulosa Cell TumorCell LineAntibodies, MonoclonalNeoplasm Recurrence, LocalMice, NudeMutationDisease Models, AnimalMammary Neoplasms, AnimalRetrospective StudiesColonBone NeoplasmsGlioblastomaMice, TransgenicPhyllodes TumorCell SurvivalEnteric Nervous SystemReceptors, Tumor Necrosis Factor, Type ITransfectionImmunoenzyme TechniquesTumor Stem Cell AssayCells, CulturedBiopsyMesenchymoma