Optic nerve glioma versus meningioma

Optic nerve glioma Optic nerve sheath meningioma
80% <20 years of age Middle-aged women
Variable enhancement ‘Tram track’ enhancement
Calcification rare Calcification in up to 50%
Buckling of the nerve (fusiform thickening ) Straight nerve (tubular thickening)
Often asymptomatic Visual impairment early


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