Incidentally Detected Aortocaval Fistula Associated with an Abdominal Aortic Aneurysm: A Case Report

Authors

DOI:

https://doi.org/10.59667/sjoranm.v15i1.14

Keywords:

EVAR, asymptomatic, AAA, aortocaval fistula, complication

Abstract

An 86-year-old woman with a known abdominal aortic aneurysm underwent CT angiography with lower-extremity runoff for left-leg circulatory symptoms. Imaging demonstrated an aortocaval fistula, right atrial enlargement and dilated pelvic veins. The fistula was described as clinically asymptomatic and was treated by endovascular aneurysm repair eight days after detection. In the hours after the procedure, abdominal pain developed. CT angiography showed superior mesenteric artery occlusion and intestinal ischaemia. Palliative care was instituted, and the patient died the following day. This case illustrates incidental detection of an aortocaval fistula during imaging for another indication and the importance of assessing new abdominal symptoms after intervention.

References

Psathas ED, Lioudaki S, Doulaptsis M, Charalampoudis P, Klonaris C, Verikokos C. Clinical Manifestations of Aortocaval Fistulas in Ruptured Abdominal Aortic Aneurysm: Report of Two Cases. Case Rep Surg. 2012;2012:123081. https://doi.org/10.1155/2012/123081 DOI: https://doi.org/10.1155/2012/123081

Gulati A, Kapoor H, Donuru A, Gala K, Parekh M. Aortic fistulas: Pathophysiologic features, imaging findings, and diagnostic pitfalls. RadioGraphics. 2021;41(5):1335–1351. https://doi.org/10.1148/rg.2021210004 DOI: https://doi.org/10.1148/rg.2021210004

Accarino G, Benenati A, Accarino G, et al. Endovascular treatment of an aortocaval fistula caused by a late type II endoleak. J Vasc Surg Cases Innov Tech. 2024;10(2):101436. https://doi.org/10.1016/j.jvscit.2024.101436 DOI: https://doi.org/10.1016/j.jvscit.2024.101436

Sohail AH, Cohen K, Ho K, Cimaroli S, Brathwaite CEM, Shin P. Incidental aortocaval fistula in the setting of an unruptured abdominal aortic aneurysm. J Surg Case Rep. 2023;2023(7):rjad384. https://doi.org/10.1093/jscr/rjad384 DOI: https://doi.org/10.1093/jscr/rjad384

Greenfield S, Martin G, Malina M, Theivacumar NS. Aortocaval fistula, a potentially favourable complication of abdominal aortic aneurysm rupture in endovascular repair. Ann R Coll Surg Engl. 2020;102(8):e180–e182. https://doi.org/10.1308/RCSANN.2020.0090 DOI: https://doi.org/10.1308/rcsann.2020.0090

SJORANM article cover, Vol. 15 No. 1 (2025). Holographic symbolic illustration for article 52.

Published

2025-01-29

Issue

Section

Case reports

How to Cite

Saliba, T., & Rotzinger, D. (2025). Incidentally Detected Aortocaval Fistula Associated with an Abdominal Aortic Aneurysm: A Case Report. Swiss Journal of Radiology and Nuclear Medicine, 15(1), 5-8. https://doi.org/10.59667/sjoranm.v15i1.14

Share

Similar Articles

11-11 of 11

You may also start an advanced similarity search for this article.

Most read articles by the same author(s)