Regarding aortic transection (traumatic aortic injury), which of the following are true?

Regarding aortic transection (traumatic aortic injury), the following are true:

d) The chest radiograph is normal in 30% of cases at presentation

e) Chronic false aneurysm develops in 5% of cases

The most common site for aortic transection is actually the descending aorta (specifically, at the level of the ligamentum arteriosum), and the left apical cap sign is not highly specific for aortic transection.

The most common site is the ascending aorta.Traumatic aortic transection, also known as aortic rupture, is the near-complete tear through all the layers of the aorta due to trauma such as that sustained in a motor vehicle collision or a fall