Diffuse midline gliomas, H3 K27M-mutant are associated with less peritumoral edema and contrast enhancement in comparison to glioblastomas, H3 K27M-wildtype of midline structures
Purpose The entity ‘diffuse midline glioma, H3 K27M-mutant (DMG)’ was introduced in the revised 4th edition of the 2016 WHO classification of brain tumors. However, there are only a few reports on magnetic resonance imaging (MRI) of these tumors. Thus, we conducted a retrospective survey focused on...
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| Hauptverfasser: | , , , , , , , |
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| Dokumenttyp: | Article (Journal) |
| Sprache: | Englisch |
| Veröffentlicht: |
August 4, 2021
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| In: |
PLOS ONE
Year: 2021, Jahrgang: 16, Heft: 8, Pages: 1-12 |
| ISSN: | 1932-6203 |
| DOI: | 10.1371/journal.pone.0249647 |
| Online-Zugang: | Verlag, lizenzpflichtig, Volltext: https://doi.org/10.1371/journal.pone.0249647 Verlag, lizenzpflichtig, Volltext: https://journals.plos.org/plosone/article?id=10.1371/journal.pone.0249647 
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| Verfasserangaben: | Rouzbeh Banan, Arash Akbarian, Majid Samii, Amir Samii, Helmut Bertalanffy, Ulrich Lehmann, Christian Hartmann, Roland Brüning |
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| 245 | 1 | 0 | |a Diffuse midline gliomas, H3 K27M-mutant are associated with less peritumoral edema and contrast enhancement in comparison to glioblastomas, H3 K27M-wildtype of midline structures |c Rouzbeh Banan, Arash Akbarian, Majid Samii, Amir Samii, Helmut Bertalanffy, Ulrich Lehmann, Christian Hartmann, Roland Brüning |
| 246 | 3 | 3 | |a Diffuse midline gliomas, H three K twenty-seven M-mutant are associated with less peritumoral edema and contrast enhancement in comparison to glioblastomas, H three K twenty-seven M-wildtype of midline structures |
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| 520 | |a Purpose The entity ‘diffuse midline glioma, H3 K27M-mutant (DMG)’ was introduced in the revised 4th edition of the 2016 WHO classification of brain tumors. However, there are only a few reports on magnetic resonance imaging (MRI) of these tumors. Thus, we conducted a retrospective survey focused on MRI features of DMG compared to midline glioblastomas H3 K27M-wildtype (mGBM-H3wt). Methods We identified 24 DMG cases and 19 mGBM-H3wt patients as controls. After being retrospectively evaluated for microscopic evidence of microvascular proliferations (MVP) and tumor necrosis by two experienced neuropathologists to identify the defining histological criteria of mGBM-H3wt, the samples were further analyzed by two experienced readers regarding imaging features such as shape, peritumoral edema and contrast enhancement. Results The DMG were found in the thalamus in 37.5% of cases (controls 63%), in the brainstem in 50% (vs. 32%) and spinal cord in 12.5% (vs. 5%). In MRI and considering MVP, DMG were found to be by far less likely to develop peritumoral edema (OR: 0.13; 95%-CL: 0.02-0.62) (p = 0.010). They, similarly, were associated with a significantly lower probability of developing strong contrast enhancement compared to mGBM-H3wt (OR: 0.10; 95%-CL: 0.02-0.47) (P = 0.003). Conclusion Despite having highly variable imaging features, DMG exhibited markedly less edema and lower contrast enhancement in MRI compared to mGBM-H3wt. Of these features, the enhancement level was associated with evidence of MVP. | ||
| 650 | 4 | |a Brainstem | |
| 650 | 4 | |a Cancers and neoplasms | |
| 650 | 4 | |a Edema | |
| 650 | 4 | |a Glioma | |
| 650 | 4 | |a Lesions | |
| 650 | 4 | |a Magnetic resonance imaging | |
| 650 | 4 | |a Malignant tumors | |
| 650 | 4 | |a Necrosis | |
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| 700 | 1 | |a Samii, Majid |e VerfasserIn |4 aut | |
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| 700 | 1 | |a Lehmann, Ulrich |e VerfasserIn |4 aut | |
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| 700 | 1 | |a Brüning, Roland |d 1963- |e VerfasserIn |0 (DE-588)112488129 |0 (DE-627)573368465 |0 (DE-576)289733146 |4 aut | |
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