Aortic aneurysm, dissection, or rupture: which one?

A 16-year-old boy was brought to the clinic because of persistence of vomiting. The only positive point was a history of an uneventful car accident 3 months earlier. Chest computed tomography scan showed aneurysmal structure obliterating the esophagus. Further delineation of the aortic anatomy with transesophageal echocardiography disclosed it as pseudoaneurysm of aorta. He was taken to the operating department where the rupture of aortic isthmus with a large pseudoaneurysm was discovered. The torn segment was excised and was replaced with a prosthetic graft.