The determination of the levels of TSH, free T4 andT3 in the serum was performed by the method of enhanced chemiluminescence with the Architect automatic analyzer (Abbott Laboratories, Chicago, Illinois, USA). The basal levels of TSH equal to 0.4–4.0 μIU/mL, free T3—3.5–6.5 pmol/L, free T4—11.5–23.2 pmol/L were considered as normal.
Thyroid gland scintigraphy with 99mTc-pertechnetate was carried out in the radionuclide diagnostic department of the Sechenov University using a GE 400T rotating gamma camera (General Electric, Boston, MA, USA).
Thyroid gland scintigraphy with 99mTc-pertechnetate was carried out in the radionuclide diagnostic department of the Sechenov University using a GE 400T rotating gamma camera (General Electric, Boston, MA, USA).
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