Figure 1

Contrast-enhanced CT imaging. a) Contrast-enhanced CT at the level of the lower abdominal aorta. A nonenhancing mass is recognized in the aortocaval space. The IVC is compressed and narrowed. b) Contrast-enhanced CT at the level of the terminal aorta. A large aneurysm with an irregular shape is recognized. c) Contrast-enhanced CT at the level of the CIA. The aneurysm and normal left CIA are visualized. Early venous filling of the left CIV and filling defect of the right CIV are recognized. d) Coronal multiplanar reconstruction contrast-enhanced CT image. An aneurysm arising at the terminal aorta and compressed IVC are recognized.