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When a patient has abdominal aortic aneurysm of a substantial size, the patient may also have synchronous and metachronous thoracic aortic aneurysm. If causes and conditions are present to create an aneurysm in a large-medium size vessel in one place, you are more likely than those without those causes and conditions to have  (or develop) another aneurysm somewhere. The pressure from the medium to large aneurysm may also cause arterial dissection where the wall of the artery is tore, a "false lumen" forms within the wall of the artery and blood can leak into it - leading to rupture.

Both examples below ask the following questions:

1. Are AAA and TAA present? If yes, where are they? What is the diameter of the identified aneurysm?
2. In the presence of large AAA and TAA, arterial dissection is likely. If arterial dissection is observed, where is it? can you classify the dissection based on anatomy?

Case 1 - Subject has both TAA and AAA

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