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. 2019 Jan 29;13:26. doi: 10.1186/s13256-018-1833-6

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© The Author(s). 2019

Open AccessThis article is distributed under the terms of the Creative Commons Attribution 4.0 International License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution, and reproduction in any medium, provided you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made. The Creative Commons Public Domain Dedication waiver (http://creativecommons.org/publicdomain/zero/1.0/) applies to the data made available in this article, unless otherwise stated.

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Fig. 1 — Patient computed tomography scan and positron emission tomography/computed tomography images. a and (b) Computed tomography showed a mass in the right buccal mucosa (red arrow) that extended superiorly to destruct the lateral wall of the maxillary sinus, inferiorly to the retromolar trigone, and laterally to the buccinator muscle and the anterior border of the masseter muscles, with multiple cervical lymph node enlargement. c Whole-body ¹⁸F-fludeoxyglucose positron emission tomography/computed tomography showed increased uptake in multiple lymph nodes in the right cervical area, right scapula and erector spinae muscles, and right femur (red arrows)