The patient was followed up all the time in the same department, according to the procedure applied for differentiated thyroid carcinoma: clinical exam, thyroid and neck ultrasound, and either by thyroid hormone withholding or by 2 I.M. injections of recombinant TSH (rTSH) he was checked for the specific thyroid tumor markers: TSH > 40 mIU/L, the serum value of Tg < 0.1 ng/mL (N.V. < 0.1 ng/mL), and anti-Tg < 10 kIU/L (N.V. < 141 kIU/L). Here, TG is linked to thyroid tumor.