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Published on: June 11, 2011
Mycotic popliteal aneurysm in an HIV-positive patient: a case report
Grégoire Kouakou Ayegnon1, Mohamed Diané1, Samuel Kouamé Abro1
1Cardiovascular and Thoracic Surgery Unit, Bouaké University Hospital, Bouaké, Ivory Coast.
Abstract:
Mycotic popliteal aneurysm is rare. It is observed less rarely in patients immunocompromised by HIV. Its pathogenesis is linked to the weakening of the artery's angiotropism by HIV and to easy systemic mycobacterial colonisation. The diagnosis is based on clinical observations and computed tomography (CT) angiography of the limbs, which shows a mycotic pseudoaneurysm in the form of a cup-shaped eumycetoma and perianeurysmal abscesses. Surgery remains the treatment of choice, associated with intensive etiological treatment. We report the case of a 49-year-old HIV-positive patient admitted to Bouaké University Hospital (Ivory Coast) for a pre-ruptured claudicating popliteal vascular mass with critical ischaemia. A popliteal mycotic aneurysm was diagnosed by pelvic limb CT angiography, and the pathology report concluded that it was a eumycetoma.
Insights
Mycotic popliteal aneurysms, rare fungal infections of the artery, are more common in individuals with HIV. Diagnosis involves CT angiography, with surgery and antifungal treatment being the primary interventions.
Area of Science:
- Vascular Surgery
- Infectious Diseases
- Mycology
Background:
- Mycotic popliteal aneurysms are uncommon vascular infections.
- Human immunodeficiency virus (HIV) infection increases susceptibility due to compromised immunity and arterial wall changes.
- Fungal colonization of the arterial system, particularly eumycetoma, is a rare but serious complication.
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