Letter REPLY Re: “Endovascular Treatment of a Symptomatic Thoracoabdominal Aortic Aneurysm by Chimney and Periscope Techniques for Total Visceral and Renal Artery Revascularization”
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- Cariati, M. & Rossi, U.G. Cardiovasc Intervent Radiol (2014) 37: 1392. doi:10.1007/s00270-014-0879-0
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We appreciated the comments about the saccular pseudoaneurysm originating from the fusiform abdominal aneurysm in the Letter to the Editor from Canyigit et al. . We agree with the comment of Canyigit et al.  that this kind of pathology is extremely rare and that penetrating atherosclerotic ulcer is the most likely underlying mechanism of its formation . Contrast-enhanced multidetector computed tomography (MDCT) has become the technique of choice to evaluate aortic disease for its specificity, sensibility, and availability .
To our knowledge, the total number of described saccular pseudoaneurysms originating from the fusiform abdominal aneurysm has increased to six cases in total [1, 3, 4]. In our previous paper, we have not emphasized this pathological aspect, because the focus of the case report was on revascularization . However, on MDCT follow-up after endovascular treatment the pseudoaneurysmatic sac showed a considerable reduction in volume .
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