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Fig. 5A 58-year-old man with previous replacement of aortic valve
with St. Jude Medical valve. Arterial phase image (A) shows ascending
aortic aneurysm (black arrow) and adjacent bilobed collection
(white arrow) in pulmonic recess. Image delayed by 5 minutes
(B) shows intense enhancement of portion of collection from active
extravasation, indicating a contained rupture, which was confirmed at
surgery.