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Updated: Jan 29, 2026

Novel and Innovative Hybrid Technique for Type A Aortic Dissection
Published on: March 28, 2025
Anterior mediastinal mass 4 years after type A aortic dissection
Alison Wallace1, Danny Marcuzzi2, Micheal Ko3
1Division of Thoracic Surgery, Toronto General Hospital, University of Toronto, Toronto, Ontario, Canada.
Abstract:
A 47-year-old male who previously underwent emergency surgery for type A aortic dissection presented to the emergency department 4 years later with acute chest pain radiating to his back and a significant drop in hemoglobin. Clinical presentation was concerning for aortic graft failure, but imaging revealed a large (6.0 × 3.2 × 12.8 cm3) soft tissue mediastinal mass that was not present 4 years before. Pathologic analysis revealed a rare thymic cyst with a hemorrhagic component. This was a challenging case from diagnostic and operative perspectives, involving the expertise of both cardiac and thoracic surgical teams.
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