[The clinical "masks" of Hashimoto's goiter (the problems of diagnosis)].

Retrospective analysis of 240 case records of patients with histologically verified Hashimoto's disease has shown that in 62% it was masked by some other thyroid diseases, especially by multinodular and nodular euthyroid goiter. The most effective diagnosis before operation was made in patients using fine needle aspiration puncture biopsy whereas other methods were auxiliary.