Oligodendroglioma MRI

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Editor-In-Chief: C. Michael Gibson, M.S., M.D. [1]Associate Editor(s)-in-Chief: Sara Mohsin, M.D.[2]Sujit Routray, M.D. [3]

Overview

Brain MRI is helpful in the diagnosis of oligodendroglioma. On brain MRI, oligodendroglioma is characterized by a mass which is typically hypointense on T1-weighted images and hyperintense on T2-weighted images. Calcification is observed on T2 decay component of MRI.[1][2]

MRI

  • Brain MRI may be helpful in the diagnosis of oligodendroglioma.
  • Findings on MRI suggestive of oligodendroglioma are listed below:[1][2]
MRI component Findings

T1

  • Typically hypointense

T2

  • Typically hyperintense
  • Enlargement of the lateral ventricles and the third ventricle with periventricular high intensity signal suggestive of transependymal absorption or tumor spreading

T2 decay

T1 with gadolinium

  • Homogenous contrast enhancement

Diffusion weighted images

  • Typically no diffusion restriction


Gallery

References

  1. 1.0 1.1 Radiographic features of oligodendroglioma. Dr Henry Knipe and Dr Frank Gaillard et al. http://radiopaedia.org/articles/oligodendroglioma
  2. 2.0 2.1 Stark AM, Hugo HH, Mehdorn HM, Knerlich-Lukoschus F (2009). "Acute Hydrocephalus due to Secondary Leptomeningeal Dissemination of an Anaplastic Oligodendroglioma". Case Rep Med. 2009: 370901. doi:10.1155/2009/370901. PMC 2797365. PMID 20052406.
  3. Image courtesy of Dr. Frank Gaillard. Radiopaedia (original file here). Creative Commons BY-SA-NC
  4. 4.0 4.1 Image courtesy of Dr. Frank Gaillard. Radiopaedia (original file here). Creative Commons BY-SA-NC
  5. 5.0 5.1 Image courtesy of Dr. Henry Knipe and Dr. Frank Gaillard et al. Radiopaedia (original file here). Creative Commons BY-SA-NC


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