Clinical presentation: A 57-yr-old man was diagnosed with a nodular goiter on evaluation performed before a cardiac surgery.

Palpation: a not firm nodule in the right lobe.

Laboratory test: TSH 1.23 mIU/L.

Ultrasonography. The thyroid was echonormal. There were several discrete lesions in the right lobe, including an echonormal one in the ventral part and a heterogeneous one in the dorsal part. The latter presented irregularities on the borders.

Cytology was performed from the hypoechoic nodule and resulted in benign lesion.

Comment. Regarding the nodule borders the heterogeneous nodule presented lobulated margins.