Pheochromocytoma should be suspected in a patient with multiple adrenergic symptoms (ie, tachycardia, sweating, anxiety) accompanied by difficult-to-control hypertension. Patients with thyroid disease usually do not suffer from high blood pressure. Patients with Cushings syndrome or primary hyperaldosteronism may have other physical and biochemical findings (eg, obesity, hypokalemia).2
2. Pacak K, Linehan WM, Eisenhofer G, et al. Recent advances in genetics, diagnosis, localization, and treatment of pheochromocytoma. Ann Intern Med 2001;134:315-29.
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