CTICasesHigh-riding superior aortic recess of the pericardium
Imaging findings
Chest CT demonstrates a large, fluid-filled cystic structure located in the right paratracheal region, which extends posteroinferiorly underneath the aortic arch to communicate directly with the superior aortic recess of the pericardium.
Key takeaways
A high-riding superior aortic recess of the pericardium can become distended with fluid, mimicking a bronchogenic or mediastinal cyst. Recognizing its typical location and communication with the pericardial space prevents unnecessary surgical resection.
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