Aortic pseudoaneurysms typically occur as a result of trauma. They can be acute or chronic.
Aortic pseudoaneurysms are contained ruptures of the aorta in which the majority of the aortic wall has been breached, and luminal blood is held in only by a thin rim of the remaining wall or adventitia.
They typically occur from focal aortic transection of which 85% are the result of penetrating trauma (gunshot or stab wounds) and 15% of cases and blunt trauma (motor vehicle accidents or falls). They also occur from non-traumatic pathologies such as penetrating atherosclerotic ulcers 5.
- characteristically occur along the undersurface of the aortic isthmus at or near the site of the ductus arteriosus 6
If at the level of the aortic arch, consider:
- acute aortic syndrome
- thoracic aortic aneurysm
- abdominal aortic aneurysm
- endovascular aneurysm repair (EVAR)
- reporting tips for aortic aneurysms
- aortic coarctation
- aortic pseudocoarctation
- cervical aortic arch
- interrupted aortic arch
- transposition of the great arteries
- variant anatomy of the aortic arch
- traumatic aortic injuries
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- 2. Chai P, Mohiaddin R. Images in cardiovascular medicine. Traumatic pseudoaneurysm of the descending thoracic aorta. Circulation. 2005;112 (15): e260-1. doi:10.1161/CIRCULATIONAHA.104.508416 - Pubmed citation
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- 4. Takach TJ, Cervera RD, Gregoric ID. Aortic pseudoaneurysm. Tex Heart Inst J. 2005;32 (2): 235-7. Free text at pubmed - Pubmed citation
- 5. Lee S, Cho SH. Huge ascending aortic pseudoaneurysm caused by a penetrating atherosclerotic ulcer. Circ Cardiovasc Imaging. 2008;1 (3): e19-20. doi:10.1161/CIRCIMAGING.108.788133 - Pubmed citation
- 6. Warshauer DM, Archer RK, Selzman CH et-al. Case 115: aortic pseudoaneurysm from penetrating superior vena cava stent. Radiology. 2007;243 (3): 901-4. doi:10.1148/radiol.2433040944 - Pubmed citation