Figure 4a. Aortic aneurysm rupture in a 68-year-old man with abdominal and right hip pain. (a, b) Axial contrast-enhanced CT images (a at a level higher than b) show a retroperitoneal hemorrhage (arrowhead) and a right psoas hematoma (arrow). (c) Post-treatment angiogram shows successful repair of the ruptured aneurysm with endovascular stent placement.