Oligoastrocytoma MRI

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Editor-In-Chief: C. Michael Gibson, M.S., M.D. [1]Associate Editor(s)-in-Chief: Sujit Routray, M.D. [2]

Overview

Brain MRI is helpful in the diagnosis of oligoastrocytoma. On brain MRI, oligoastrocytoma is characterized by a mass which is typically hypointense on T1-weighted images and hyperintense on T2-weighted images. No enhancement is observed on T1-weighted images with gadolinium contrast.

MRI

• Brain MRI may be helpful in the diagnosis of oligoastrocytoma.
• Findings on MRI suggestive of oligoastrocytoma are tabulated below:

MRI component	Findings
T1	Typically hypointense
T2	Typically hyperintense
T1 with gadolinium	No contrast enhancement

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