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. 2021 Apr 6;9(10):2281–2288. doi: 10.12998/wjcc.v9.i10.2281

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©The Author(s) 2021. 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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Positron emission tomography-computed tomography. A-C: Radioactive concentration of 18F-fluorodeoxyglucose on the tumor rim, and no radioactive concentration was observed in other areas of the body.