I had a biopsy for a 1 cm nodule. Came back negative. Surgeon does not recommend taking out. My mother has had thyroid cancer twice. Once in early twenties with half removed. Couple of years ago had nodule on remaining with negative biopsy. They removed rest anyway and cancerous tissue found. With that history should I get a second opinion? The surgeon was aware of my mother's history. He said that the sample was quite large so he feels safe not to do anything.