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Left-sided vena cava mimicking traumatic ruptured thoracic aorta.
The Journal of Trauma
|July 1, 1987
Summary
Mediastinal widening on chest X-rays after trauma can suggest aortic rupture. A rare anatomical variation, a left-sided vena cava, can mimic this finding, as shown by contrast CT scan in this case.
Area of Science:
- Radiology
- Anatomical Variations
- Thoracic Imaging
Background:
- Chest trauma can cause mediastinal widening, a potential indicator of traumatic aortic rupture.
- Diagnostic imaging, particularly chest roentgenograms, are crucial in evaluating trauma patients.
Observation:
- A case presented with mediastinal widening on a chest X-ray following trauma.
- This radiographic finding raised concern for traumatic aortic rupture.
Findings:
- A left-sided superior vena cava was identified as the cause of the apparent mediastinal widening.
- Contrast-enhanced computed tomography (CT) confirmed the anatomical anomaly.
Implications:
- Awareness of rare anatomical variations like a left-sided vena cava is essential for accurate interpretation of chest imaging.
- Misinterpretation can lead to unnecessary investigations and delayed diagnosis of actual pathology.