title: Carotid body tumor: ultrastructural observations.
mesh_terms: D000368:Aged; D002344:Carotid Body / Q000473:pathology*; D002345:Carotid Body Tumor / Q000473:pathology*; D003594:Cytoplasmic Granules; D004721:Endoplasmic Reticulum; D005260:Female; D006056:Golgi Apparatus; D006801:Humans; D008854:Microscopy, Electron; D008928:Mitochondria