chromaffin cells
1. a type of APUD cells that stain readily with chromium salts, their cytoplasmic granules taking on a characteristic brown color; they are found especially in cells of the adrenal medulla and in paraganglia of the coccygeal gland and carotid gland, along the sympathetic nerves, and in various organs. They contain chromaffin granules. See also enterochromaffin c's and argentaffin c's. Called also pheochrome cells and pheochromocytes.
Medical dictionary.
2011.