File:Astrocytoma (Radiopaedia 85660-101440 I 63).jpg

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Summary:

Description	Radiopaedia case ID: 85660 Image ID: 54169550 Image stack position: 63/180 Plane projection: Axial Aux modality: T1 C+ Modality: MRI System: Central Nervous System Findings: Right frontal lesion has 2 components:a nodular component medially that has herniated beneath the falx to cross midline with multiple small vessels and wispy enhancement, and a crescentic lateral component that demonstrates the T2 FLAIR mismatch sign. There is additional surrounding peritumoural edema. The lesion appears intra-axial and solitary. Local mass effect has compressed the right frontal horn and created a midline shift of 1 cm and has displaced the 2 A2 branches (in close proximity to its left posterior margin)No significant diffusion restriction. No calcification on CT. No internal hemorrhage.Conclusion:Solitary right frontal intra-axial lesion is most likely to represent a glioma. The T2 FLAIR mismatch favors a non 1p19q codeleted IDH mutant diffuse astrocytoma while the more medial nodule of wispy enhancement with internal vascularity is suspicious for a high-grade/anaplastic component.
Date	Published: 21st Apr 2021
Source	https://radiopaedia.org/cases/astrocytoma-2
Author	Frank Gaillard
Permission (Permission-reusing-text)	http://creativecommons.org/licenses/by-nc-sa/3.0/

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current	00:18, 28 May 2021		247 × 247 (11 KB)	Fæ (talk \| contribs)	Radiopaedia project rID:85660 (batch #3105-868 I63)

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