Clinical presentation: A 70-yr-old woman requested evaluation of an enlarged thyroid which has been known for several years. Recently, her neighbor died of thyroid cancer; that made the patient anxious about her thyroid condition.

Palpation: a not firm nodule in the left lobe and in the isthmus.

Laboratory test: TSH 0.42 mIU/L.

Ultrasonography. There was a minimally hypoechoic nodule within a minimally hypoechoic background. The borders of the nodule were indistinctive.

Cytology resulted in benign lesion.

Comment. The lesion presents both pathological and non-pathological forms of blurred margins.