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. 2017 Dec 15;96(50):e9332. doi: 10.1097/MD.0000000000009332

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Copyright © 2017 the Author(s). Published by Wolters Kluwer Health, Inc.

This is an open access article distributed under the terms of the Creative Commons Attribution-Non Commercial-No Derivatives License 4.0 (CCBY-NC-ND), where it is permissible to download and share the work provided it is properly cited. The work cannot be changed in any way or used commercially without permission from the journal. http://creativecommons.org/licenses/by-nc-nd/4.0

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Pseudoprogression in a 29-year-old man with grade II glioma. Contrast-enhanced T1-weighted image obtained 3 months (A), 5 months (B), and 8 months (C) after CCRT. The enhanced lesion in the right temporal lobe around the surgery site gradually disappeared. ASL-CBF, DSC-CBF, and DSC-CBV maps obtained 3 months after CCRT showed iso- or a little hypoperfusion in the contrast-enhancing lesion, suggesting pseudoprogression. ASL-CBF = arterial spin labeling-cerebral blood flow, CCRT = concurrent chemoradiotherapy, DSC-CBF = dynamic susceptibility contrast- cerebral blood flow, DSC-CBV = dynamic susceptibility contrast-cerebral blood volume.