Adrenal vein sampling for diagnosis and localization of aldosteronoma

Adrenal vein sampling is a valuable tool in the diagnosis and localization of aldosterone-secreting tumors in patients with clinically suspected primary hyperaldosteronism. Accurate identification of unilateral aldosterone-producing adrenal adenomas is critical because surgical resection of such lesions may be offered to this subset of patients. Key factors in successful adrenal vein sampling include proper patient selection and adherence to standardized technique.