Clinical presentation: A 37-year-old man was referred for aspiration cytology of a thyroid nodule discovered on evaluation of hoarseness that lasted for 3 months. No cause for the hoarseness was revealed.

Palpation: a not firm nodule in the isthmus.

Functional state: euthyroidism (TSH 0.91 mIU/L).

Ultrasonography. The thyroid was inhomogeneous. There was a moderately hypoechogenic nodule presenting halo sign and a combined peri- and intranodular blood flow in the isthmus.

Cytology resulted in papillary carcinoma.

Histopathology disclosed papillary carcinoma

Comment. The blurred borders of the nodule in the isthmus are caused by technical and not by pathological condition.