using a sensitive and specific radioenzymatic assay , the plasma norepinephrine ( ne ) concentration was measured in seven patients with pheochromocytoma , one patient with bilateral adrenal medullary hyperplasia , one patient with a retroperitoneal paraganglioma , and two patients undergoing bilateral adrenalectomies for palliation of metastatic breast carcinoma .
C0031511
pheochromocytoma
C0030421
paraganglioma