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. 2023 Apr 18;9(2):859–870. doi: 10.3390/tomography9020070

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© 2023 by the authors.

Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (https://creativecommons.org/licenses/by/4.0/).

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Images from a 71 year-old man with IDH wild-type glioblastoma. Images from 4/23/2018 (middle row, white box) were reviewed at tumor board. Compared with prior study (top row), both FLAIR (white arrow) and enhancing tumor volume were increasing (yellow arrows). While the radiology report called this study a 3b, the tumor board presenter and the tumor board consensus felt the increase was sufficient to score it as disease progression (BT-RADS 4). Subsequent follow-up (bottom row) showed further increase (arrows) and the patient underwent re-irradiation of recurrent disease.