Optic nerve glioma MRI

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Optic nerve glioma Microchapters

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Differentiating Optic nerve glioma from other Diseases

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Editor-In-Chief: C. Michael Gibson, M.S., M.D. [5]Associate Editor(s)-in-Chief: Simrat Sarai, M.D. [6]

Overview

MRI

Radiographs no longer have any real role to play in the diagnosis of orbital masses, however if performed enlargement of the optic canal may be demonstrated if the tumour is not confined to the orbit. Additional findings of NF1 may also be visible.

MRI component Features
T1
  • enlargement is often isointense to hypointense compared to the contralateral side
T2
  • hyperintense centrally
  • low signal at the periphery representing the dura
T1 C+ (Gd)
  • enhancement is variable
MRI showing optic nerve glioma

[1]

Axial T1 MRI showing bilateral optic nerve glioma

[2]

Coronal T2 MRI showing bilateral optic nerve glioma

[3]

Coronal T2 MRI showing bilateral optic nerve glioma

[4]

References

  1. Image courtesy of Dr Frank Gaillard. Radiopaedia (original file [1]).[http://radiopaedia.org/licence Creative Commons BY-SA-NC
  2. Image courtesy of Dr Frank Gaillard. Radiopaedia (original file [2]).[http://radiopaedia.org/licence Creative Commons BY-SA-NC
  3. Image courtesy of Dr Frank Gaillard. Radiopaedia (original file [3]).[http://radiopaedia.org/licence Creative Commons BY-SA-NC
  4. Image courtesy of Dr Frank Gaillard. Radiopaedia (original file [4]).[http://radiopaedia.org/licence Creative Commons BY-SA-NC

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