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. 2022 Aug 28;28(32):4540–4556. doi: 10.3748/wjg.v28.i32.4540

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©The Author(s) 2022. Published by Baishideng Publishing Group Inc. All rights reserved.

This article is an open-access article that was selected by an in-house editor and fully peer-reviewed by external reviewers. It is distributed in accordance with the Creative Commons Attribution NonCommercial (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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A 60-year-old male with hepatitis B and cirrhosis. A and B: A < 10 mm segment II observation demonstrated arterial phase hyperenhancement (APHE) (arrows) on arterial post-contrast images (A) without washout (B), categorized as LR-3 observation; C and D: 1-year later, the observation measured 18 mm, showed APHE (arrows) in the arterial phase (C) without definite washout in the portal phase (D). However due to threshold growth, it was categorized as LR-5.