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Figure 3: (a) Grayscale ultrasound image of the right thyroid lobe showing a well-defined echogenic lesion with distal acoustic enhancement. (b) The contour of the lesion is regular with a peripheral anechoic halo and shows hypervascularity on Doppler imaging. These features are consistent with a malignant thyroid lesion. Fine-needle aspiration interpretation revealed Bethesda category (6) consistent with papillary thyroid carcinoma

Figure 3: (a) Grayscale ultrasound image of the right thyroid lobe showing a well-defined echogenic lesion with distal acoustic enhancement. (b) The contour of the lesion is regular with a peripheral anechoic halo and shows hypervascularity on Doppler imaging. These features are consistent with a malignant thyroid lesion. Fine-needle aspiration interpretation revealed Bethesda category (6) consistent with papillary thyroid carcinoma