Figure 1. Serial CT scans documented an ongoing process of periaortitis. (A, upper panels) Upon presentation, contrast-enhanced CT showed a homogeneous wall thickening of the aortic arch (arrow) and increased soft tissue density in the superior mediastinum. The findings were consistent with chronic periaortitis or infectious aortitis. (B, middle panels) Day 14, follow-up CT displayed a contrast-filled, mushroom-like protrusion arising from the aortic arch, about 38×22 mm, suggesting a newly developed pseudoanerysm (arrow). (C, lower panels) 12 months after operation, CT exhibiting significant resolution of perivascular infiltration and regression of aneurysmal pouch, the hyperdense stent graft in situs without evidence of endoleak : A Rapidly Growing Pseudoaneurysm Secondary to Aortic Arch Periaortitis : Science and Education Publishing

Figure 1. Serial CT scans documented an ongoing process of periaortitis. (A, upper panels) Upon presentation, contrast-enhanced CT showed a homogeneous wall thickening of the aortic arch (arrow) and increased soft tissue density in the superior mediastinum. The findings were consistent with chronic periaortitis or infectious aortitis. (B, middle panels) Day 14, follow-up CT displayed a contrast-filled, mushroom-like protrusion arising from the aortic arch, about 38×22 mm, suggesting a newly developed pseudoanerysm (arrow). (C, lower panels) 12 months after operation, CT exhibiting significant resolution of perivascular infiltration and regression of aneurysmal pouch, the hyperdense stent graft in situs without evidence of endoleak

American Journal of Medical Case Reports. 2015, 3(11), 347-351 doi:10.12691/ajmcr-3-11-1