Clinical presentation: A 70-year-old woman was referred for evaluation of a nodular goiter which was diagnosed during evaluation of suspected lung cancer. CT detected a mass in the left upper mediastinum.

Palpation: The left lobe had a large, not firm nodule.

Hormonal evaluation indicated euthyroidism (TSH 3.46 mIU/L).

Ultrasonography. The thyroid was echonormal. There were several insignificant lesions in the right lobe. The left lobe presented a large nodule composed of discrete hyperechogenic areas. The lower pole of the lobe was clearly visible during swallowing (see video).

Cytology of resulted in benign colloid goiter.

Suggestion: ultrasound in a year.