Clinical data: a 51-year-old woman was referred for an evaluation of neck discomfort lasting for a year. She discovered a nodule in the isthmic part of the thyroid 5 months before the present examination.

Palpation: a firm nodule in the isthmus.

Functional state: euthyroidism (TSH 2.01 mIU/L, FT4 14,9 pM/L).

 

The lesion in question was located in the isthmus.