Clinical data: A 67-year-old woman was referred for evaluation of a goiter which has been discovered incidentally on carotid Doppler ultrasonography. The patient had no complaints.

Functional state: euthyroidism (TSH-level 1.08 mIU/L).

Ultrasonography revealed a mixed solid-cystic nodule in the enlarged left lobe.  

Cytological report: repeatedly not diagnostic. The final, integrated clinical-sonographic-cytologic diagnosis was follicular adenoma with great probability. Images of intraoperative imprint smears are presented.

We offered regular follow-up examinations. The patient wished to be operated.

Histopathological examination: disclosed dominantly normofollicular adenoma with degenerative changes.