Hi. I underwent surgery for breast cancer last year and as a result of one of the scans, I was diagnosed with a retrosternal goitre, At the time of diagnosis, it was such a relief that it wasn't the cancer having spread, that I didn't ask a great deal of questions. My thyroid levels are normal. However, on my first annual visit back to see the breast surgeon, he frightened the life out of me! He asked if I had trouble swallowing and breathing and seemed amazed when I said no. He told me the goitre was the size of a fist in my chest and was pressing my windpipe. He was amazed that I had no problems. Truthfully, he seemed a bit excited about it and told me that the minute I had problems, I was to get my GP to refer me back directly to him. He said removal was a major operation and would involve a thoracic surgeon cracking my chest open! I have since done some research and one of the sites says that it is VERY rare for your chest to be opened and nearly all chest goitres can be accessed via the throat. Anyone any opinions on this?