I had a thyroid ultrasound on Monday (5/9/16) and my doctor called later the same day to tell me it measures 7 cm! She is referring me for a biopsy, which I'm not too worked up about thanks to all the info I've found on this site and elsewhere, but 7 cm seems to be very large. I did find one study that showed the incidence of thyroid cancer with thyroid nodules does seem to go up with the size of the nodule, but only until 4 cm. With nodules larger than 4 cm, there is no longer a linear relationship with incidence of thyroid cancer. Since it is so large, my doc said she'd refer me to an endocrinologist even if the biopsy came back showing it is benign, because the specialist would probably like it removed anyway.
I guess I'm just wondering if anyone else has had a nodule this large, what surgery was like to remove it, whether the other side of the thyroid was left alone, etc.