PMC2801629_01
Contrast computed tomography showed the periaortic enhancement and dirty fat sign (white arrow), at the level of aortic arch and its branches A) abdominal aortic aneurysm, B) and common iliac arteries C).
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The periaortic contrast-enhancement from the ascending thoracic aorta including the branches of the aortic arch to the common iliac arteries, noted abnormalities which were especially pronounced from AAA to the common iliac arteries (Figure 1).
Contrast computed tomography three weeks after steroid therapy at the level of aortic arch and its branches A) abdominal aortic aneurysm, B) and common iliac arteries C).
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The CT on the 38th day showed that the periaortic dirty fat sign and contrast-enhancement disappeared (Figure 2).