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Updated: Jun 10, 2026
04:56
Modified Octopus Technique for Thoracoabdominal Aortic Aneurysm
Published on: August 1, 2025
Large aortic aneurysm mimicking a cardiac tumor
Zhen-Yu Liao1, Jui-Peng Tsai, Jen-Yuan Kuo
1Division of Cardiology, Department of Internal Medicine, Mackay Memorial Hospital, Taipei, Taiwan, ROC.
Cardiovascular Ultrasound
|August 19, 2010
Summary
A rare case of extrinsic left atrial compression by a displaced descending thoracic aorta was diagnosed using 3D echocardiography. This imaging technique revealed the aortic anomaly compressing the left atrium, mimicking cardiac tumors.
Area of Science:
- Cardiology
- Medical Imaging
- Thoracic Surgery
Background:
- Extrinsic left atrial compression is a rare condition.
- It can be caused by a displaced descending thoracic aorta.
- This anomaly can be misdiagnosed as primary cardiac tumors or metastatic neoplasms.
Observation:
- A 78-year-old woman presented with back pain, exercise intolerance, and angina.
- Echocardiography revealed a mass in the left atrium (LA).
- Three-dimensional echocardiography (3DE) showed the LA compressed by a pulsatile structure, suggestive of the aorta.
Findings:
- Detailed anatomical visualization of the anomalous descending aorta.
- Demonstration of extrinsic compression of the left atrium.
- RT-3DE identified the precise location and structure of the aberrant aorta.
Implications:
- 3DE provides superior visualization of complex thoracic anomalies compared to 2D methods.
- Accurate diagnosis of extrinsic left atrial compression is crucial for appropriate management.
- This case highlights the utility of advanced echocardiography in diagnosing rare cardiovascular conditions.
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