ParagangliomaParaganglioma, Extra-AdrenalSuccinate DehydrogenasePheochromocytomaCarotid Body TumorAdrenal Gland NeoplasmsGlomus Jugulare TumorAbdominal NeoplasmsRetroperitoneal NeoplasmsCauda EquinaElectron Transport Complex II3-IodobenzylguanidineGerm-Line MutationPeripheral Nervous System NeoplasmsNormetanephrineMetanephrineTumor Markers, BiologicalPara-Aortic BodiesCervicoplastyTomography, X-Ray ComputedAortic BodiesTumor BurdenTumor Necrosis Factor-alphaMediastinal NeoplasmsHead and Neck NeoplasmsCell Line, TumorGenital Neoplasms, MaleThoracic NeoplasmsNeuroendocrine TumorsSomatostatinomaHypoglossal Nerve DiseasesSpermatic CordIodobenzenesPeplomycinCranial Nerve NeoplasmsChromogranin ACarney ComplexWilms TumorSpinal Cord NeoplasmsSynaptophysinVanilmandelic AcidPolycythemiaCatecholaminesNeoplasms, ExperimentalGenes, Tumor SuppressorRadiopharmaceuticalsMutationParaganglia, NonchromaffinCarcinoid TumorDNA Mutational AnalysisVascular NeoplasmsNeoplasm MetastasisTumor Suppressor Protein p53Spinal Neoplasms