I could very well be another person with this problem, insofar as I had radiation in '09 for oropharyngeal cancer and, about 2 years later, developed what has been diagnosed as polyneuropathy in both hands and arms and some in my feet.

By coincidence to your post I was with my oncologist today for my yearly checkup and we of course discussed the PN. She had never seen a case of rads (as against chemo, which we know is not uncommon) causing PN but didn't rule it out. She said she would discuss it with her group and get back to me.

If I learn anything that could help anyone here I'll surely post it.