A neoplasm composed of chromaffin cells occurring in the medullae of adrenal glands, the organs of Zuckerkandl, or the paraganglia of the thoracolumbar sympathetic chain; may secrete catecholamines. SEE ALSO: pheochromocytoma. SYN: chromaffin tumor.
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chro·maf·fi·no·ma .krō-mə-fə-'nō-mə, krō-.maf-ə- n, pl -mas also -ma·ta -mət-ə a tumor containing chromaffin cells esp PHEOCHROMOCYTOMA
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chro·maf·fi·no·ma (kro-maf″ĭ-noґmə) any tumor containing chromaffin cells, such as a pheochromocytoma.Medical dictionary. 2011.