The most common cause of<unk>  is a ruptured<unk>  aneurysm. Other causes include trauma and iatrogenic (procedure-related) causes.
Aortic rupture
Aortic dissection
Acute aortic syndrome
Traumatic aortic rupture
Myocardial rupture
Pulmonary hematoma
Diaphragmatic rupture
Thoracic aorta injury