Fig. 15. Two different obese diabetics with mycotic aortic aneurysms which could not be delineated by ultrasonography.

A. Contrast-enhanced computed tomography of the abdomen shows indistinct outline of the abdominal aorta with surrounding soft tissue strands (arrow) suggesting either aortic leak or mycotic aortic aneurysm. B. Contrast-enhanced computed tomography shows indistinct outline of the abdominal aorta with gas collections (arrows) indicating mycotic aortic aneurysm. The gas could not be well shown by ultrasound.