Abdominal aortic aneurysm with thrombus fissuration
Updates to Case Attributes
An aneurysm is defined as a more than 50% increase in diameter compared with the expected normal diameter vessel. A less than 50% increase is termed ectasia.
- An infrarenal aorta considered to be aneurysmal if it is 3 cm in diameter or greater. Some authors consider 3.5 cm in diameter to be a better “cut off point.”
- Aortic wall degeneration secondary to atherosclerotic disease, as in our case, is probably not the most common cause responsible for the formation of AAAs.
- Thrombus fissuration is a worrisome sign that may point to impending rupture of an aortic aneurysm.
-<ul>-<li>An aneurysm is defined as a more than 50% increase in diameter compared with the expected normal diameter vessel. A less than 50% increase is termed ectasia.</li>-<li>An infrarenal aorta considered to be aneurysmal if it is 3 cm in diameter or greater. Some authors consider 3.5 cm in diameter to be a better “cut off point.”</li>-<li>Aortic wall degeneration secondary to atherosclerotic disease, as in our case, is probably not the most common cause responsible for formation of AAAs.</li>-<li>Thrombus fissuration is a worrisome sign that may point to impending rupture of an aortic aneurysm.</li>-</ul>- +<p>An aneurysm is defined as a more than 50% increase in diameter compared with the expected normal diameter vessel. A less than 50% increase is termed ectasia.</p><p>An infrarenal aorta considered to be aneurysmal if it is 3 cm in diameter or greater. Some authors consider 3.5 cm in diameter to be a better “cut off point.”</p><p>Aortic wall degeneration secondary to atherosclerotic disease, as in our case, is probably not the most common cause responsible for the formation of AAAs.</p><p>Thrombus fissuration is a worrisome sign that may point to impending rupture of an aortic aneurysm.</p>
Updates to Study Attributes
Fusiform aneurysmal dilatation of the infrarenal aorta measuring about 7x6 cm in its maximum axial diameters and extends for about 13 cm in length. A mural crescentic thrombus is seen with a linear contrast streak seen extending from the lumen into the mural thrombus indicative of thrombusfissuration.
Mural calcifications are noted.
Other findings: left renal stone, right renal simple cyst, dorsolumbar spondylodegenerative changes.
Updates to Study Attributes
A mural crescentic thrombus is seen with a linear contrast streak (red arrow) seen extending from the lumen into the mural thrombus indicative of thrombus fissuration.
Image Annotated image (Axial C+ arterial phase) ( update )
Image 1 Annotated image (Axial C+ arterial phase) ( create )
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