• Parts A, C, and D courtesy of Raymond Douglas, MD; part B courtesy of Roger A. Dailey, MD.
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    A, Right optic nerve glioma. This child had severe proptosis and exposure and light perception vision. B, Funduscopic view. Note swollen disc with obscured disc margins. C, Axial T2-weighted MRI showing glioma of the optic nerve extending into the optic canal. D, Sagittal MRI showing a heterogeneous mass in the apex of the orbit.