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. 2024 Jul 30;14(8):5721–5736. doi: 10.21037/qims-24-457

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2024 Quantitative Imaging in Medicine and Surgery. All rights reserved.

Open Access Statement: This is an Open Access article distributed in accordance with the Creative Commons Attribution-NonCommercial-NoDerivs 4.0 International License (CC BY-NC-ND 4.0), which permits the non-commercial replication and distribution of the article with the strict proviso that no changes or edits are made and the original work is properly cited (including links to both the formal publication through the relevant DOI and the license). See: https://creativecommons.org/licenses/by-nc-nd/4.0.

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Enhancement direction on CEUS. (A-C) Images of centrifugal enhancement of the same PTC nodule (red arrows) in the left lobe of the thyroid gland of a 69-year-old man. (D) A case of a benign nodule (red arrows) in the left lobe of the thyroid gland of a 65-year-old woman showing the feature of scattered enhancement on CEUS. The minutes and seconds after the contrast media injection are indicated by the numbers in the bottom left corner of each panel. CEUS, contrast-enhanced ultrasound; PTC, papillary thyroid carcinoma.