CTICasesTraumatic brachiocephalic artery pseudoaneurysm
Imaging findings
CT angiogram shows a large mediastinal/paraspinous hematoma, a small aortic root intimal tear, and a large pseudoaneurysm arising from the right brachiocephalic (innominate) artery with surrounding active hemorrhage.
Key takeaways
Deceleration trauma can cause severe injury to the brachiocephalic vessels. CTA is critical for identifying innominate artery pseudoaneurysms, which require prompt surgical or endovascular repair to prevent exsanguination.
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