I had a trans-sternal thymectomy and the removal of a thymoma about 18 years ago. The best I can say is I haven't gotten any worse. I've experienced one brief remission and several flair-ups over the years. Having been on this forum for a number of years I can tell you there have been many folks that have had the surgery, experienced remission and have moved on. Try searching "thymectomy" on this forum and see if you can find more success stories. Jim