Clinical presentation: A 37-year-old woman was referred for evaluation of a thyroid nodule discovered on evaluation of 'lump in the throat' feeling. The lesion in the lower part of the left lobe was described as suspicious because of the presence of microcalcifications.

Palpation. Both lobes were a bit firm.

Laboratory tests: TSH 0.87 mIU/L, aTPO 0.4 U/mL.

Ultrasonography. The thyroid was moderately and minimally hypoechogenic, right and left lobe, respectively. There were several discrete areas in both lobes. None of them corresponded to a nodule in pathological sense. The lesion in question in fact contained not microcalcifications but connective tissue.

Aspiration cytology resulted in Hashimoto's thyroiditis.

Suggestion. TSH determination in a year, in the event of pregnancy at once.