Nonchromaffin-Staining Functional Tumor of the Organs of Zuckerkandl

Abstract
THE detection of pheochromocytoma has become increasingly facilitated in the last decade as the result of the introduction of simple tests that may be performed as routine procedures in the differential diagnosis of hypertension.1 The relation of tumors of the chromaffin system to both fixed and paroxysmal hypertension is well known. The great majority of these tumors involve the adrenal medulla although a small but significant number (5 to 10 per cent) are extra-adrenal and involve the sympathetic ganglions, organs of Zuckerkandl and other chromaffin tissue in normal and ectopic locations.2 The organs of Zuckerkandl in the adult constitute rests . . .