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—We thank Dr Coyle for his comments. The goal of our article was to point out a correlation between the T2-weighted magnetic resonance (MR) image of the right optic nerve tumor and its histopathologic features. However, we certainly agree that the left optic nerve enlargement is not likely to be physiologic. In fact, other computed tomographic and MR images suggested that this child may have some enlargement of the left optic nerve and chiasm consistent with neurofibromatosis. We did not wish to leave the reader with any other impression.We disagree, however, that the left optic nerve, as seen in our Fig 3 (Dr Coyle noted Fig 4, but we believe he meant Fig 3), shows the same T2-weighted MR finding as that of the tumor on the right. The apparent border around the image of left optic nerve in Fig 3 is due
Seiff SR, Hoyt WF. Orbital Optic Glioma in Neurofibromatosis-Reply. Arch Ophthalmol. 1988;106(6):720–721. doi:10.1001/archopht.1988.01060130790008
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