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An embolizing lesion in a minimally diseased aorta
B G Rubin1, B T Allen, C B Anderson
1Department of Surgery, Washington University School of Medicine, St. Louis, MO.
Surgery
|September 1, 1992
Summary
A rare case of acute limb ischemia caused by an unusual intravascular lesion in the thoracic aorta is described. Surgical removal of the lesion successfully restored arterial flow, preventing limb loss.
Area of Science:
- Vascular Surgery
- Diagnostic Imaging
- Cardiovascular Medicine
Background:
- Acute limb-threatening ischemia (ALI) is a vascular emergency often caused by arterial embolism or thrombosis.
- Identifying the embolic source is crucial for effective treatment and prevention of recurrence.
Observation:
- A patient presented with ALI, initially treated with lower extremity angiography and thromboembolectomy.
- Transesophageal echocardiography did not reveal a cardiac embolic source.
- Advanced imaging, including CT and aortography, identified a mobile intravascular lesion in the descending thoracic aorta.
Findings:
- The identified lesion, originating from a normal aorta, was the cause of lower extremity emboli.
- Surgical resection of the lesion and graft placement were successfully performed.
- Restoration of normal arterial flow to the affected limb was achieved.
Implications:
- This case highlights the importance of a comprehensive arterial tree evaluation when an embolic source is suspected but not found by standard investigations.
- Intravascular lesions of the aorta, though rare, should be considered in the differential diagnosis of embolic events.
- Prompt diagnosis and surgical intervention can prevent limb loss in such unusual presentations.