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Figure 1: (a) Grayscale ultrasound image of the right thyroid lobe showing a well-defined, predominately iso- to low-echogenic lesion with distal acoustic enhancement. (b) The contour of the lesion is regular and no vascularity is visible on color Doppler imaging. These features are consistent with a benign thyroid nodule. Fine-needle aspiration interpretation revealed few polymorphs and occasional macrophages, negative for malignant cells

Figure 1: (a) Grayscale ultrasound image of the right thyroid lobe showing a well-defined, predominately iso- to low-echogenic lesion with distal acoustic enhancement. (b) The contour of the lesion is regular and no vascularity is visible on color Doppler imaging. These features are consistent with a benign thyroid nodule. Fine-needle aspiration interpretation revealed few polymorphs and occasional macrophages, negative for malignant cells