Abdominal aortic aneurysms that have ruptured or are at imminent risk of rupture

Figures

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  Figure 1. CT angiography with coronal reconstruction (A) and axial images (B,C,D) in the arterial phase, showing a ruptured AAA, with hematoma and bleeding, extending to the perirenal space and psoas muscle on the left.

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  Figure 2. Unenhanced CT scans of a 62-year-old male patient in whom an AAA increased in diameter from 2013 (A,B) to 2015 (C,D), the increase being accompanied by a loss of the definition of the posterior aortic wall, corresponding to the draped aorta sign (arrow), as shown in axial slices (A,C) and sagittal reconstructions (B,D).

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  Figure 3. Unenhanced CT scans of a 73-year-old male patient in whom the maximum diameter of an AAA increased by 3 cm over a two-year period, from 5 cm in 2013 (A,B) to 8 cm in 2015 (C,D), as shown in axial slices (A,C) and sagittal reconstructions (B,D).

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  Figure 4. Hyperattenuating crescent sign (arrows), as shown in an unenhanced sagittal CT reconstruction (A) and unenhanced axial CT slice (B).

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  Figure 5. A 69-year-old male patient, complaining of abdominal pain, presenting at 18-day intervals: significant increase in the aneurysm sac and the appearance of a penetrating ulcer (arrow), as shown in axial slices acquired in the arterial phase (A,D); new outpouching (arrowhead), as shown in coronal reconstructions acquired in the arterial phase (B,E); and periaortic hematoma, as shown in sagittal reconstructions acquired in the arterial phase (C,F).