Study index: 96-22 Vendor Algotec Modality CT Examination CT angiography (Renal) History 60-year-old male with non-controlled hypertension. Findings CT angiography images demonstrate a focal stenosis at the origin of the left renal artery. The right renal vasculature is normal. There are atherosclerotic changes present in the aorta. There is a hypodense focus at the base of the left kidney consistent with renal cyst. Degenerative changes are present in the dorsal spine. Focal atherosclerotic narrowing at origin of left renal artery.