Optic Nerve Glioma: A Case of Surgical Treatment to the Optic Chiasm Tumor

A twenty nine-year-old woman has suffered for ten years from progressive proptosis and loss of vision in the right eye. Her right eye had deviated out-and-upwards, and its visual acuity was tested by hand motions. With the help of a brain and orbit CT, the tumor was found around the optic nerve and in the parasellar area. This tumor was surgically removed twice by Kroenlein operation and craniotomy, and was treated with irradiation(total dose: 5400 RAD). It was histopathologically diagnosed as astracytoma grade I. In the consecutive study, no evidence of recurrence of the tumor in either the orbit or brain was found.