CTICasesCommunicating Type B aortic dissection with retrograde extension
Imaging findings
Pre-contrast and contrast-enhanced CT scans demonstrate a retrograde Type A aortic dissection with tears originating in the distal aortic arch and descending aorta, extending retrogradely to involve the ascending aorta and arch with a large intramural hematoma.
Key takeaways
Aortic dissection with a primary tear in the descending aorta that propagates retrogradely to involve the ascending aorta is classified as a retrograde Type A dissection. It can be managed endovascularly by covering the primary distal entry tears, avoiding open ascending aortic surgery.
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