Abstract
The conventional treatment for papillary thyroid cancer (PTC) is total thyroidectomy, radioiodine therapy and TSH suppression. This is achieved by replacement of levothyroxine (T4) in supraphysiological doses. Since the biologically active thyroid hormone is T3, in the absence of thyroid production of this hormone, the availability of serum and intracellular T3 to inhibit TSH secretion de…