Clinical data: a 65-year-old woman with a goiter known for 30 years. She had neck discomfort.

Palpation: both lobes of the thyroid were moderately enlarged and a nodule was palpable in the right lobe.

Functional state: euthyroidism with TSH-level 1.59 mIU/L.

Ultrasonography: revealed a solitary hypoechogenic nodule in the upper part of the right lobe.

Cytological report: benign follicular proliferation (microfollicular proliferation without atypia, scanty amount of colloid in the background).

Suggestion: yearly follow-up examination because US excluded the thyroidal origin of neck complaints. The patient wished to be operated. 

Histopathology: disclosed follicular adenoma.