I went to see an endocrinologist at Mass General recently, and together we decided to NOT have RAI. The
recurrence is about 3% for most folks, but since my
cancer was multifocal, the recurrence rate goes up to 5% according to this doctor. Also, he told me that there have been no good studies to prove that RAI prevents recurrence. There was no cancer in the lymph nodes that were removed, so I'm going with taking the 5% chance that the cancer will recur.