A 62-year-old man comes to the physician for a routine health maintenance examination. He has a 20-year history of hypertension managed with a thiazide. Three months ago, blood pressure was 140/90. Today, blood pressure is 210/100. Fundoscopy shows AV nicking. A left carotid bruit is heard. Which of the following is the most likely cause of these findings?
Conn syndrome
Adrenal cortical hyperplasia
Reninoma
Pheochromocytoma
Renal artery stenosis