Head and Neck NeoplasmsParagangliomaParaganglioma, Extra-AdrenalCarotid Body TumorGlomus Jugulare TumorPheochromocytomaAdrenal Gland NeoplasmsSuccinate DehydrogenaseAbdominal NeoplasmsHeadNeckGlomus Tympanicum TumorPara-Aortic BodiesPeripheral Nervous System NeoplasmsAortic BodiesNeck Pain3-IodobenzylguanidineVagus Nerve DiseasesEar NeoplasmsThoracic NeoplasmsMetanephrineNormetanephrineNeoplasms, Multiple PrimaryElectron Transport Complex IICranial Nerve NeoplasmsImprinting (Psychology)Germ-Line MutationCauda EquinaCatecholaminesSomatostatinomaCyanoacrylatesTomography, X-Ray ComputedRetroperitoneal NeoplasmsSkull Base Neoplasmsvon Hippel-Lindau DiseaseHead MovementsDihydroxyphenylalaninePancreatic NeoplasmsNeck InjuriesNeuroendocrine TumorsFemur HeadNeoplasmsNeoplastic Syndromes, HereditaryLoss of HeterozygosityMultiple Endocrine NeoplasiaMultiple Endocrine Neoplasia Type 2aMutationCarcinoma, Squamous CellIodobenzenesFemoral Neck FracturesImmunohistochemistryNeoplasms, Cystic, Mucinous, and SerousIndium RadioisotopesVon Hippel-Lindau Tumor Suppressor Protein