Update... I saw a Vascular Surgeon here in Tulsa about 2 months ago who said the CAA was calcified and represented a very low risk of causing any issues. He told me- Don't Smoke, Walk 30 minutes a day no Heavy Lifting, Control Blood Pressure, take my Statin and don't worry about it. He said once per year on my scheduled CAT Scans they would monitor. Funny, it made me feel better. Funny I say becuse the thing being calcified is supposedly a good thing, but in general calcification in my anteries most assuredly is a bad thing. I'm going to Phoenix in May and may seek a second opinion at the Mayo Clinic.