Neurosecretory granules in mitochondria.
D000310:Adrenal Gland Neoplasms / Q000648:ultrastructure*; D000311:Adrenal Glands / Q000648:ultrastructure; D003594:Cytoplasmic Granules / Q000648:ultrastructure*; D006801:Humans; D008854:Microscopy, Electron; D008928:Mitochondria / Q000648:ultrastructure*; D009489:Neurosecretion; D010673:Pheochromocytoma / Q000648:ultrastructure*