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Updated: Jun 12, 2026

Chronic Salmonella Infection Induced Intestinal Fibrosis
Published on: September 22, 2019
[Salmonella bredney: a rare cause of mycotic aneurysm]
M H Jammal1, J Guidon, L Chiche
1Service de médecine interne, hôpital Saint-Antoine, 184 rue du Faubourg-Saint-Antoine, Paris cedex, France.
Abstract:
Mycotic aneurysms are rare, remain asymptomatic for a long time, and may be life threatening by their rupture if therapy is delayed. Historically associated with Streptococcus pyogenes and Staphylococcus aureus, they now frequently involve Salmonella species in elderly or immunodeficient patients, and complicate vascular investigation or surgical procedures. Frequently located in the abdominal aorta, they can also be found rarely in other location. Therapy associates antibiotics and surgical debridement with reestablishment of vascular continuity. We report a case of ruptured popliteal aneurysm with Salmonella bredney bacteraemia.
Insights
Mycotic aneurysms, often asymptomatic, pose a rupture risk. This case highlights Salmonella bredney causing a ruptured popliteal aneurysm, emphasizing the need for prompt diagnosis and treatment.
Area of Science:
- Vascular Surgery
- Infectious Diseases
- Microbiology
Background:
- Mycotic aneurysms are rare vascular infections, historically linked to Streptococcus and Staphylococcus.
- Salmonella species are increasingly implicated, particularly in elderly or immunocompromised individuals.
- These aneurysms can occur in various locations, commonly the aorta, but rarely elsewhere.
Observation:
- This report details a rare case of a ruptured popliteal artery aneurysm.
- The patient presented with Salmonella bredney bacteremia.
Findings:
- The case demonstrates Salmonella bredney as a causative agent of mycotic aneurysms in a peripheral artery.
- Ruptured popliteal aneurysms due to Salmonella bacteremia are a critical, potentially life-threatening condition.
Implications:
- Highlights the importance of considering Salmonella in mycotic aneurysm etiology, especially in vulnerable populations.
- Underscores the need for timely antibiotic therapy and surgical intervention to prevent catastrophic rupture.
- Suggests broadening the differential diagnosis for peripheral aneurysms to include infectious causes.
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