Hi Eric,
I initialy had a sore under my tongue that was biopsied in May 02. Results were negative. In September 02 I started noticing a white line where the biopsy was. Saw the oral surgeon immediately and he said Keep an eye on it, you may have a lumpy tongue. My dentist saw it in March, by that time it had developed into SCC, lucky for me stage 1. Everyone is different, but if it were me, I would check it out.
Sincerely,
Lisa
PS Edited to note that I did NOT have radiation and can't respond from that perspective. I am sure you will get many responses from folks that did have radiation.