Clinical data: a 62-year-old woman requested a second opinion. She noticed a lump in the right side of the neck for three months. On evaluation a moderate degree of hyperthyroidism was detected. The nodule did not take up radioiodine. TSAb and anti-TPO resulted in normal level. Cytology was not diagnostic and surgery was advised.

Palpation: the right lobe was firm and nodular.

Functional state: subclinical hyperthyroidism on daily 15 mg methimazole: TSH 0.13 mIU/L, FT4 11.6 pM/l, FT3 4.07 pM/l.

The lesion in question was located in the right lobe.