Most thoracic aortic aneurysms are asymptomatic, but compression or damage to adjacent tissue by a dilated vessel can cause symptoms such as chest pain, shortness of breath, cough, hoarseness, and dysphagia. Dilation of the ascending aortic aneurysm can cause congestive heart failure, and compression of the superior vena cava can cause congestion of blood in the head, neck, and upper extremities.
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