CT angiogram demonstrates an irregular lobulated saccular aneurysm arrising from the posterior aspect of the abdominal aorta at the level of the renal vessels. There is an incomplete rim of peripheral calcification and adjacent collections within the right diaphragmatic crus and adrenal gland. A second smaller aneurysm of the anterior aspect of the aorta is seen more inferiorly. There is a wedge-shaped region of hypoattenuation in the left renal upper pole.
Interpretation: Findings are consistent with mycotic aneurysm of the abdominal aorta with adjacent abscesses and left renal embolic infarct.