Giant Aneurysm of the Ascending Aorta

History

A 28-year-old man with no prior medical history presented with new onset dyspnea. He was not on any medication at the time of admission, and he denied using cigarettes or alcohol. There is no family history of sudden cardiac death. A month prior to the admission he was running three miles a day. On physical examination he was 75 inches tall and weighed 163 lbs. His vital signs on admission were stable, although his cardiac examination revealed a grade III/VI early diastolic murmur.