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Review
. 2023 Dec;58(6):1680-1702.
doi: 10.1002/jmri.29016. Epub 2023 Sep 16.

The 2021 WHO Classification for Gliomas and Implications on Imaging Diagnosis: Part 3-Summary of Imaging Findings on Glioneuronal and Neuronal Tumors

Yae Won Park  1 , Philipp Vollmuth  2 , Martha Foltyn-Dumitru  2 , Felix Sahm  3 , Kyu Sung Choi  4 , Ji Eun Park  5 , Sung Soo Ahn  1 , Jong Hee Chang  6 , Se Hoon Kim  7
Affiliations
Review

The 2021 WHO Classification for Gliomas and Implications on Imaging Diagnosis: Part 3-Summary of Imaging Findings on Glioneuronal and Neuronal Tumors

Yae Won Park et al. J Magn Reson Imaging. 2023 Dec.

Abstract

The fifth edition of the World Health Organization classification of central nervous system tumors published in 2021 reflects the current transitional state between traditional classification system based on histopathology and the state-of-the-art molecular diagnostics. This Part 3 Review focuses on the molecular diagnostics and imaging findings of glioneuronal and neuronal tumors. Histological and molecular features in glioneuronal and neuronal tumors often overlap with pediatric-type diffuse low-grade gliomas and circumscribed astrocytic gliomas (discussed in the Part 2 Review). Due to this overlap, in several tumor types of glioneuronal and neuronal tumors the diagnosis may be inconclusive with histopathology and genetic alterations, and imaging features may be helpful to distinguish difficult cases. Thus, it is crucial for radiologists to understand the underlying molecular diagnostics as well as imaging findings for application on clinical practice. EVIDENCE LEVEL: 3 TECHNICAL EFFICACY: Stage 3.

Keywords: World Health Organization; central nervous system neoplasms; glioma; magnetic resonance imaging.

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