title: Ultrastructure of the glomus jugulare tumor.
mesh_terms: D000368:Aged; D001706:Biopsy; D003594:Cytoplasmic Granules; D004428:Ear Neoplasms / Q000473:pathology*; D004432:Ear, Middle / Q000473:pathology; D006652:Histological Techniques; D006801:Humans; D008297:Male; D008854:Microscopy, Electron; D009992:Osmium; D010234:Paraganglia, Nonchromaffin / Q000473:pathology*; D010236:Paraganglioma, Extra-Adrenal / Q000473:pathology*
chemical_list: D009992:Osmium