My son just had labs drawn as we were in to the Dr to see if he had ADD. The Dr called me at home at 8 pm at night and said his labs came back Undetectable and he wants him in his office right away Monday morning to get a scan and maybe more labs. He did mention cancer. What exactallly does it mean to have Undetecable TSH levels??
Don't know what kind of doctor that is---tsh has nothing to do with thyroid cancer. Likely he is hyperthyroid---perhaps graves disease, you should see a pediatric endocrinologist, and say you want to try meds to handle it, not radioiodine therapy.