Common symptoms of a dissecting thoracic aneurysm include:

• Sudden severe chest pain
• Pain may spread to the upper back
• Severe weakness or fatigue

Less common symptoms of dissecting thoracic aneurysm include:

• Confusion
• Difficulty breathing
• Difficulty swallowing
• Hoarse voice
• Leg numbness (unilateral)
• Leg weakness (unilateral)
• Fainting

For more information:

• Abdominal aortic aneurysm symptoms
• Aortic rupture symptoms