Ascending Aorta 3.5 cm

A recent CT (with and without contrast) for something else revealed a finding of an “Ascending aortic ectasia 3.5 cm, somewhat prominent compared to the descending aorta and body habitus..”
The Dr. who ordered the scan, referred me back to my Primary Care Physician for follow up on this finding as it was unrelated and out of his scope of practice. After following up with my primary care physician, he said he researched and conferred with another Dr. and they recommend waiting 2 years for another scan. No referral to a Cardiologist at this time.
After reading about the ascending aorta and possible related issues, I am still concerned. I want to trust my PCP, he has been my physician for quite a number of years and knows my history, but should I request further tests or a referral to a cardiologist? Just FYI, I am a 62 yr old female. Currently I take meds for high blood pressure and high cholesterol. Both are under control at this time.
Thank you in advance for your comments.