Fig. 4From: Evaluating thyroid nodules: predicting and selecting malignant nodules for fine-needle aspiration (FNA) cytologyFalse-positive cases for malignancy. Ultrasound images of (a) a solid—cystic follicular adenoma and (b) a benign hyperplastic nodule. The nodules demonstrated mixed (central and peripheral) colour flow pattern on colour Doppler and selected for FNA using our criteria in Table 5Back to article page