Related Experiment Video
Updated: Jul 24, 2025

Characterizing Salmonella Typhimurium-induced Septic Peritonitis in Mice
Published on: July 29, 2022
Mycotic Pseudoaneurysm of Thoracic Aortic Caused by Salmonella Paratyphi A: A Case Report
Ying Han1, Yue Zhang1, Gege Gong2
1Department of Pain Management, The Affiliated Hospital of Southwest Medical University, Luzhou, People's Republic of China.
Background:
Mycotic pseudoaneurysm, also known as infectious pseudoaneurysm, is a severe disease with a high mortality rate. Although Salmonella infection is a common etiological factor for mycotic pseudoaneurysm, Salmonella paratyphi A infection causing mycotic pseudoaneurysm is extremely rare. Endovascular therapy has been described as a feasible treatment for mycotic pseudoaneurysm.
Case Presentation:
A 63-year-old female patient had a thoracic aortic pseudoaneurysm caused by Salmonella paratyphi A infection. The patient associated with diabetes had a fever, abdominal pain, and low back pain, who was successfully treated using endovascular stents treatment and antibiotics.
Conclusion:
Salmonella paratyphi A is a bloodstream infection bacterium with the ability to cause mycotic pseudoaneurysm. To treat mycotic pseudoaneurysms of the thoracic aorta, endovascular stent-graft treatment combined with antibiotics is an alternative treatment for patients who cannot tolerate open surgery.
Insights
A rare case of thoracic aortic pseudoaneurysm caused by Salmonella paratyphi A infection was successfully treated. This infectious pseudoaneurysm was managed with endovascular stent-graft treatment and antibiotics.
Area of Science:
- Infectious diseases
- Cardiovascular surgery
- Medical microbiology
Background:
- Mycotic pseudoaneurysm, or infectious pseudoaneurysm, is a serious condition with high mortality.
- Salmonella species are common causes, but Salmonella paratyphi A is an extremely rare etiology.
- Endovascular therapy is a recognized feasible treatment option.
Observation:
- A 63-year-old female patient with diabetes presented with fever, abdominal pain, and low back pain.
- She was diagnosed with a thoracic aortic pseudoaneurysm attributed to Salmonella paratyphi A infection.
- The patient underwent successful treatment with endovascular stent-graft placement and antibiotics.
Findings:
- Salmonella paratyphi A can cause mycotic pseudoaneurysms, even in the thoracic aorta.
- Endovascular stent-graft treatment, combined with antibiotics, proved effective in this case.
- This approach offers an alternative for patients unsuitable for open surgery.
Implications:
- Highlights the potential of Salmonella paratyphi A to cause severe vascular infections.
- Demonstrates the efficacy of endovascular stent-graft repair for mycotic thoracic aortic pseudoaneurysms.
- Supports endovascular therapy as a viable alternative to open surgery in select patients.
Related Concept Videos
Aneurysm I: Introduction
Aneurysm II: Clinical Manifestations and Diagnostic Studies
Aneurysm III: Interprofessional Care

