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. 2020 Jun 27;12(6):262–276. doi: 10.4254/wjh.v12.i6.262

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©The Author(s) 2020. Published by Baishideng Publishing Group Inc. All rights reserved.

This article is an open-access article which was selected by an in-house editor and fully peer-reviewed by external reviewers. It is distributed in accordance with the Creative Commons Attribution Non Commercial (CC BY-NC 4.0) license, which permits others to distribute, remix, adapt, build upon this work non-commercially, and license their derivative works on different terms, provided the original work is properly cited and the use is non-commercial.

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Characteristics of benign and malignant liver masses. A: A distinctly demarcated hyperechoic lesion consistent with a benign hemangioma. B: A liver lesion with both iso/hypoechoic parts peripherally (outlined in orange in inset) and central hyperechoic parts suggestive of malignancy. C: A hypoechoic mass exhibiting post-acoustic enhancement (outlined in orange in inset) as frequently seen in malignancy. D: A hypoechoic, poorly demarcated mass distorting adjacent strictures (orange arrows and brackets in inset) suggestive of malignancy.