…. I forgot to mention. I did active surveillance for 10 years with cancer hospital. The nodule had gotten very large and I was told I was not a candidate for RFA because the Affirma testing identified having over 50% chance of Hurthle Cell Carcinoma. In my opinion, going to an endocrinologist affiliated with a cancer hospital is a better way to go….. they see cancer all the time and would be able to advise you about your circumstances.