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Updated: Sep 29, 2026

Multimodality Diagnosis of Mesenteric Ischemia
Published on: July 21, 2023
[Development of mycotic aneurysms of the superior mesenteric artery after septic embolism]
1Institut für Diagnostische Radiologie, Inselspital, Universitätsklinik Bern, 3010 Bern/Schweiz.
Abstract:
Mycotic aneurysms of the aorta and the visceral arteries are life-threatening diseases, due to potential rupture and organ or limb ischemia. They occur in endocarditis, immunodeficiency, bacteremia and fungemia, and have a poor prognosis. We report on a case of a 54-year-old male patient suffering from abdominal angina after mitral valve replacement for septic mycotic endocarditis. In presence of a mycotic-embolic occlusion of the left popliteal artery and multiple septic organ infarctions a mycotic aneurysm of the superior mesenteric artery was found in abdominal spiral-CT. Based on sequential spiral-CT examinations, this case demonstrates the development of a septic aneurysm of the superior mesenteric artery.
Insights
Mycotic aneurysms, serious infections of arteries, can lead to rupture and organ damage. This case highlights the development of a superior mesenteric artery aneurysm in a patient with endocarditis.
Area of Science:
- Vascular Surgery
- Infectious Diseases
- Radiology
Background:
- Mycotic aneurysms pose significant risks, including rupture and ischemia.
- Associated with conditions like endocarditis, immunodeficiency, bacteremia, and fungemia.
- Often present with a poor prognosis.
Observation:
- A 54-year-old male presented with abdominal angina post-mitral valve replacement for septic endocarditis.
- The patient exhibited mycotic-embolic occlusion of the left popliteal artery and multiple septic organ infarctions.
- A superior mesenteric artery aneurysm was identified via abdominal spiral CT.
Findings:
- Sequential spiral CT scans documented the development of a septic aneurysm in the superior mesenteric artery.
- This case provides a detailed temporal view of aneurysm formation.
- Correlates clinical presentation with radiological findings of mycotic aneurysm progression.
Implications:
- Early detection and monitoring of mycotic aneurysms are crucial.
- Understanding the development of septic aneurysms aids in treatment strategies.
- Highlights the importance of advanced imaging in managing complex vascular infections.
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