First of all, at this age, how much longer do you wish to live? It sounds like a harsh question, but you seem to be a practical person. My understanding of the word "benign" is that it could also mean "precancerous" because a growth is a DNA change, and a growth continues to grow and it can change to become cancerous, or not, Get a second opinion and study the information. It is difficult to decide the best steps to take in some cases. We are all different but we support you in your journey and we can relate our experiences. I never had tests, just surgery so I can't recommend anything. Dorisena