The correct answer is C. 55 mm!
- Based on landmark natural history studies (such as Elefteriades et al.), the critical "hinge point" where the risk of rupture, dissection, or death spikes exponentially for an ascending thoracic aortic aneurysm is 5.5 cm (55 mm).
This is also why current guidelines (ACC/AHA & ESC) recommend elective surgical repair at 5.5 mm for sporadic aneurysms without connective tissue disease (or 5.0 mm in specialized centers / specific patient populations).
Congratulations! One again
Great board-style quiz question!
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2026-08-31 09:18:49
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Emotional-Support-American :
c
2026-08-30 23:58:30
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