Keywords:
Vascular, Arteries / Aorta, CT, Diagnostic procedure, Aneurysms, Infection, Trauma, Retrospective, Diagnostic or prognostic study, Performed at one institution
Authors:
E. E. BIgnardi1, F. Baccaro2, D. De Santo3, R. Filippelli4, C. Palumbo4, M. Coppola5; 1Naples, Italy/IT, 2Caserta/IT, 3Napoli (NA), Italy/IT, 4Naples/IT, 5Cava de' Tirreni/IT
DOI:
10.26044/ecr2020/C-12570
Purpose
The purpose of this retrospective study was to determine the MDCT angiographic findings characterizing psuedoaneurysms of the abdominal aorta (AAPs)
AAPs are rare, accounting for about 1% of all aortic aneurysms, most often resulting from trauma, either penetrating or blunt trauma, interventional diagnostic and therapeutic procedures (like those involving arterial punctures or cardiac catheterization), atherosclerosis, chronic inflammation and infection. All these factors cause disruption of the arterial wall continuity, letting blood dissect into the tissues surrounding the damaged vessel, forming a sac in direct communication with the arterial lumen. While in true aneurysm all three layers of the arterial wall are intact, in AAP the majority of the wall has been breached, and the luminal blood is generally contained by the remaining tunica media or adventitia, exposing the patient at a high risk of complication as rupture.