CTICasesAortic Graft Pseudoaneurysm
Imaging findings
Lateral chest radiograph shows a newly developed retrosternal soft-tissue density contour bump. Chest CT post-repair of a Type A dissection confirms a pseudoaneurysm arising from the distal anastomosis site of the ascending aortic graft, projecting anteriorly into the retrosternal space.
Key takeaways
Anastomotic pseudoaneurysm is a well-recognized complication of aortic graft repair, occurring at the suture lines (proximal or distal anastomosis). It can present as a contour abnormality on lateral radiographs. CT is the imaging modality of choice to define the size, relationship to the sternum, and help plan re-operation, as opening the sternum carries a high risk of rupture.
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