Clinical presentation: A 25-year-old woman was referred for evaluation of a thyroid nodule detected on investigation performed because the patient planned to be pregnant.

Palpation: The right lobe was suspicious containing a nodule.

Functional state: minimally elevated TSH (4.80 mIU/L) and normal anti-TPO (1.1 U/mL).

Ultrasonography. The thyroid was echonormal. There was a hypoechogenic lesion with lobulated margins in the central part of the right thyroid. The lesion did not present blood flow.

Cytology resulted in papillary carcinoma.

A right lobectomy was performed. Histopathology disclosed a solitary focus of papillary carcinoma with a maximal diameter of 9 mm and mild degree of lymphocytic thyroiditis in the extranodular parenchyma.

Comment. The tumor presented blurred and lobulated margins. In the video we can see microcalcifications not only within but also outside the hypoechogenic lesion which raises the possibility of invasive growth.