I am hypo (low)
thyroid, so I'm only going from what I've read & learned here
There are cases when the hyper
is so intense that a Doctor has the choice to radiate (kill off)
or remove the over active thyroid gland all together. And from what posters here say, most prefer surgery to radiation.
I had one enlarged, non-cancerous Thy lobe removed Oct 05. Of course you need a skilled surgeon & proper care afterwards. Mine was pretty easy, but getting stabilized on meds has been an on-going