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.[1]

MRI

  • Brain MRI may be helpful in the diagnosis of oligoastrocytoma.
  • Findings on MRI suggestive of oligoastrocytoma are tabulated below:[1]
MRI component Findings

T1

  • Typically hypointense

T2

  • Typically hyperintense

T1 with gadolinium

  • No contrast enhancement


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References

  1. 1.0 1.1 Radiologic MRI features of oligoastrocytoma. Dr Bruno Di Muzio and Dr Frank Gaillard et al. Radiopaedia 2015. http://radiopaedia.org/articles/oligoastrocytoma


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