Figure - PMC

Skip to main content

An official website of the United States government

Here's how you know

Here's how you know

Official websites use .gov
A .gov website belongs to an official government organization in the United States.

Secure .gov websites use HTTPS
A lock ( ) or https:// means you've safely connected to the .gov website. Share sensitive information only on official, secure websites.

View full-text article in PMC

. 2024 Jul 12;169(3):571–579. doi: 10.1007/s11060-024-04758-4

Search in PMC
Search in PubMed
View in NLM Catalog
Add to search

© The Author(s) 2024

Open Access This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons licence, and indicate if changes were made. The images or other third party material in this article are included in the article’s Creative Commons licence, unless indicated otherwise in a credit line to the material. If material is not included in the article’s Creative Commons licence and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this licence, visit http://creativecommons.org/licenses/by/4.0/.

PMC Copyright notice

Fig. 2 — Case 3 is a representative case with left occipital lobe astrocytoma, IDH-mutant displaying the negative super T2-FLAIR mismatch sign and negative conventional T2-FLAIR mismatch sign. No evident contrast enhancement is observed (A, B). The T2-weighted (C) and FLAIR (D) images illustrate a tumor displaying a uniform hyperintensity. Hematoxylin-eosin staining showed (E) pleomorphic astrocyte tumor cells with a microcystic background. Case 4 is the representative case with left frontal lobe astrocytoma, IDH-mutant displaying a negative super T2-FLAIR mismatch sign but a positive conventional T2-FLAIR mismatch sign. No observable contrast enhancement was noted (F, G). The tumor manifests as a hyperintense area in the T2-weighted image (H) and exhibits a relatively low signal on the FLAIR image (I), except for a hyperintense peripheral rim. Hematoxylin-eosin staining (J) shows an astrocytic tumor amidst a fibrillary and microcystic background.