Had a chest Cat Scan done and found a 3.8 cm prominence of the ascending thoracic aorta. What is this. Have not went to cardiologist yet, just primary care doctor found this. I also have trace of leaky valves. Nothing big yet, not symtoms or medicine required. Radiologist that read this did not specify if this was a anuerysm. Just wondering. Had the Cat Scan done because of being sick with cold and cough for 6 weeks. Thank you