CTICasesAortic Dissection with SVS Zonal Classification
Imaging findings
CT angiography shows a Stanford Type A aortic dissection originating in the ascending aorta and extending distally through the entire thoracic and abdominal aorta into the right superficial femoral artery (SFA). The true and false lumens are clearly defined by an intimal flap.
Key takeaways
Aortic dissections can extend extensively into the lower extremities, causing acute limb ischemia. The Society for Vascular Surgery (SVS) and Society of Thoracic Surgeons (STS) reporting guidelines emphasize reporting the entry tear zone and the distal extent to guide endovascular (TEVAR) or open surgical management.
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