[Diagnostic problems of autoimmune thyroiditis].

The most informative diagnostic criteria of autoimmune thyroiditis were revealed. A kit of diagnostic tests were offered for each version of autoimmune thyroiditis. The lowest percentage of antibodies against thyroglobulin was demonstrated for the hyperthyroid hypertrophic version of autoimmune thyroiditis, while the highest for its atrophic pattern. Biopsy of the thyroid was found to be the most informative test for autoimmune thyroiditis, provided the result was positive. If the result of puncture biopsy is negative, it is desirable to apply a complex of tests depending on thyroid function and size.