Optic nerve glioma with complete intraocular extension.
OBJECTIVE
To present a rare presentation of optic nerve glioma (ONG) with total intraocular extension.


METHODS
A 44-year-old man with a history of loss of vision since childhood and recent development of progressive disfiguring proptosis was referred.


RESULTS
The vision in the affected eye was no light perception, and a proptosis of about 2-3 mm was present. Computed tomography and Magnetic Resonance Imaging (MRI) of brain/orbit showed a fusiform enlargement of the left optic nerve and total filling of vitreous cavity by a mass with high signal intensity in T2-weighted MRI. There was no extension into the intracranial cavity. The patient also had no signs of neurofibromatosis. Histopathology confirmed the diagnosis of ONG of the left orbit with extension into the globe and filling vitreous cavity.


CONCLUSIONS
ONG may extend to the vitreous cavity with no simultaneous intracranial involvement.
Poostchi Eye Research Center, Department of Ophthalmology, Shiraz University of Medical Sciences, Shiraz, Iran.
Masoomeh
M
Eghtedari
Poostchi Eye Research Center, Department of Ophthalmology, Shiraz University of Medical Sciences, Shiraz, Iran.
Seyede Fariba
SF
Fattahi
Poostchi Eye Research Center, Department of Ophthalmology, Shiraz University of Medical Sciences, Shiraz, Iran.
Naser
N
Owji
Pathology Department, Khalili Hospital, Shiraz University of Medical Sciences, Shiraz, Iran.
Mohammad Javad
MJ
Ashraf
Poostchi Eye Research Center, Department of Ophthalmology, Shiraz University of Medical Sciences, Shiraz, Iran.
Mohammad Reza
MR
Khalili
Pathology Department, Namazi Hospital, Shiraz University of Medical Sciences, Shiraz, Iran.
Bita
B
Geramizadeh
Glioma; Intraocular tumor; Optic nerve