I understand that this is frightening, but in all honesty, what on Earth can you do about it now? Nothing. The CT scan has already happened. So, you face the same choice as all of us mortals…. are you going to spend your life in an anxious state over this situation, which may or may not even be significant in your case, or are you not? You'll have a life no matter which route you go, but surely it'll be a better life if not spent in constant anxiety.