Optic nerve glioma
Patient with a history of left proptosis and orbital surgery one year ago. Known left optic nerve glioma for follow up.
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The left optic nerve shows diffuse fusiform enlargement measuring 35 x 15 x 15 mm. It is involving the whole intra-orbital and intra-canalicular segments of the left optic nerve. It shows T1 hypointense, T2 heterogenous and FLAIR hyperintense signal intensity, restricted DWI, and intense homogenous post-contrast enhancement pattern.
Left proptosis is noted.
This case demonstrates a left optic nerve mass with no chiasmatic or contralateral extensions suggestive of optic nerve glioma. The optic nerve shows fusiform enlargement with kinking and postcontrast enhancement.