
Figure 1.
Axial (A) and sagittal (B) views of the ascending aortic pseudoaneurysm with stable hematoma at the time of diagnosis. The measurements of the hematoma were 3.8 × 6.7 × 9.3 cm, and measurements of the pseudoaneurysm sac were 1.7 × 2.6 × 2.7 cm (arrow).

Figure 2.
Transversal (A) and sagittal (B) views of the ascending aortic pseudoaneurysm at the time of presentation; note the jet of active contrast extravasation from the ascending aorta into the hematoma (arrow) and the swirl sign (arrow head).

Figure 3.
Ruptured ascending aortic pseudoaneurysm with contained mediastinal hematoma. The measurements of the hematoma were 9.6 × 12.2 × 14 cm. (A) Mediastinal hematoma compressing on the innominate artery (arrow) and trachea (arrow head). (B) Mediastinal hematoma compressing on the pulmonary trunk, decreasing its diameter to 4 mm (arrow).