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Table 5 Proposed set of ultrasound criteria for selecting thyroid nodules for FNA cytology analysis. Nodules are selected if any of these features are seen on ultrasound

From: Evaluating thyroid nodules: predicting and selecting malignant nodules for fine-needle aspiration (FNA) cytology

Thyroid nodular ultrasound features for selecting nodules for FNA

Central or mixed colour Doppler flow pattern

Markedly hypoechoic

Microcalcification