Diagnosis of primary aldosteronism in chronic kidney disease by I-131 NP-59 SPECT/CT imaging.

Primary aldosteronism (PA) may be missed in patients with chronic kidney disease (CKD), because CKD may disturb the renin-angiotensin-aldosterone system. Adrenal vein sampling has increased risks in patients with CKD. We report the case of a 58-year-old man with CKD and suspected PA. Left adrenal aldosteronism was diagnosed by NP-59 SPECT/CT. Left adrenalectomy demonstrated adrenocortical nodular hyperplasia. Plasma aldosterone normalized and blood pressure stabilized after surgery. NP-59 SPECT/CT may be a helpful diagnostic tool for detecting and lateralizing PA in CKD patients.