From the case: Optic nerve meningioma

Sagittal C+ delayed
Modality: CT (C+ delayed)

- “ These are classic appearances of an optic nerve meningioma. ”

Used in the following article:

  • Optic pathway glioma - “ Optic pathway gliomas are relatively uncommon tumours, with a variable clinical course and usually seen in the setting of neurofibromatosis type I...”
  • Tram-track sign (orbit) - “ Tram-track sign refers to the parallel thickening and enhancement around the optic nerve, and is most frequently seen in the setting of optic nerv...”
  • Optic nerve sheath meningioma - “ Optic nerve meningiomas are benign tumours arising from the arachnoid cap cells of the optic nerve sheath, and represent ~20% of all orbital menin...”

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