Mildly enlarged thyroid gland with heterogeneous parenchymal echogenicity; right thyroid lobe measures 2.1 x 1.6 x 5.1 cm and left thyroid lobe measures 1.8 x 1.7 x 5.1 cm. No focal solid or cystic abnormality is seen in either thyroid lobe. Increased vascularity (thyroid inferno) is seen in both lobes on color Doppler ultrasound examination.