A main symptom associated with an aortic aneurysm, which affects the section of the aorta called the descending aorta, can be pain in the back area, notes Cedars-Sinai. An aortic aneurysm occurs when there is a bulge that forms in a section of the aorta's wall.
Because the aorta is a large artery that runs through the chest and abdominal areas, there are different sections along it, and they are subdivided into the thoracic and abdominal aorta. A thoracic aortic aneurysm occurs when the affected site is a section of the aorta such as the descending aorta, ascending aorta or aortic valve, states Cleveland Clinic. The descending aorta is the lower portion of the thoracic aorta.
Although some patients with a thoracic aortic aneurysm may not have any symptoms, others can experience symptoms such as a hoarse voice, cough, chest or back pain and breathing problems. However, the symptoms can depend on the specific site affected. In the case of a descending aortic aneurysm, a common symptom is back pain that may feel similar to muscle back pain.
A complication of an thoracic aortic aneurysm can occur if there is an aortic tear or rupture, which can cause internal bleeding. Symptoms associated with a rupture are severe back pain, hypotension, unconsciousness and paralysis that affects one side. An aortic rupture is a serious condition that can require surgery, An thoracic aortic aneurysm also can cause other complications, such as the formation of blood clots, notes Mayo Clinic.