If thyroglobulin is not reliable because of the presence of antithyroglobuline antibodies, how doctor know if i'm cancer free?

Thyroid cancer: A progressive increase in serum tg concentrations strongly suggests progressive disease, and should lead to a search for the disease, usually starting with a chest x-ray, neck ultrasonography, and radioiodine scanning. Serum tg doubling time of less than one year was associated with significantly higher rates of 10-year disease-specific mortality, loco-regional metastases, and identification of d.