CTICasesMarfan Syndrome with Coronary Button Aneurysms
Imaging findings
CT angiogram shows massive aneurysmal dilatation of the aortic tissue surrounding the coronary button anastomosis (button aneurysms) years after aortic root and valve replacement. A large thrombus is also noted straddling the prosthetic aortic valve.
Key takeaways
Patients with Marfan syndrome undergoing aortic root replacement (modified Bentall procedure) are at risk for developing button aneurysms at the site of coronary artery re-implantation due to progressive cystic medial necrosis of residual native aortic tissue.
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