Renal artery stenosis: a classic presentation, a rare cause

In this case report, a patient is described with an unusual cause of renal artery stenosis (RAS). The patient presented with acute anuric renal failure and hypertensive urgency, following a nephrectomy, which was complicated by massive blood loss. Because the acute renal failure was first presumed to be due to acute tubular necrosis, the diagnosis of a nearly complete iatrogenic RAS was not made until 6 weeks after surgery. The stenosis was caused by five misplaced surgical clips on the artery of the remaining kidney. The hypertension was initially treated with ACE inhibitor. Eight weeks after the initial surgery, a successful revascularisation procedure was performed, leading to the recovery of kidney function.