Aneurysmal dilatation of the abdominal aorta, beginning just below the level of the left renal artery and extending inferiorly to just above the aortic bifurcation. Aneurysm measures approximately 9.3 x 7.5 x 10.8 cm (side to side x anteroposterior x craniocaudal dimensions).
A well-defined crescent shape high density (with an average density of 50 Hounsfield units), encasing 3rd part of the duodenum, is seen around the anterior and right lateral aspect of the aneurysm, which is highly suspicious for a contained rupture/hematoma. Fat stranding is noted in the surroundings of this hematoma and in right paracolic gutter.
Minimal water density fluid is seen around the liver and in the pelvis.
Status post right nephrectomy. A few cortical cysts in are seen in the left kidney. No renal calculi or significant hydronephrosis is seen. Empty urinary bladder with a Foley's catheter in situ.
Generalized decreased bone density and degenerative changes are seen in the visualized skeleton.