Mine was measured at 4.3 and told to have a have a CT Chest with Contrast again in two years. The two year point is in October and my doctor (not a cardiologist) has sent a request to the imaging center schedule this for me in October. At 73 I feel good and walk at 2.2 on the treadmill every other day. I admit I follow the directives given when this was discovered and felt better after speaking with my husband's Nurse Practitioner in his cardiologist surgery office. At first blush I was nervous and a "basket case" as I also had for the first time in my life high blood pressure (mine has always been low). I have taken my prescribed medicine, cut my all day caffeine coffee to 20oz a day (that liked to kill me as an old New Yorker I drank coffee all day and could still sleep peacefully) followed the rules (yes, I am a rule follower) and enjoyed a great two years which included both land and cruise vacations with quite a bit of walking. For me peace of mind is what comes into your choice, if you will feel better mentally to speak to a cardiologist than go see one. Each of us handles the news and either front or back of the mind thinking about it. I feel better about my TAA today than I did two years ago. So good I have two cruises booked one for 2025 and one for 2026. I pray you will remain with no growth and do what will give you have peace of mind.