In view of the array of symptoms, the patient was referred for medical evaluation of a suspected pheochromocytoma, a neuroendocrine tumor of the adrenal gland. He underwent 24-hour blood pressure ...

The symptoms of pheochromocytoma depend on whether catecholamine secretion is persistent or intermittent and whether the predominant hormone is norepinephrine or epinephrine—in this patient it ...