Oligodendroglioma--a case presentation.

Cerebral oligodendroglioma is a rare form of malignant tumor. Oligodendroglioma represents 5% of all gliomas. Our patient is a 12 1/2-year-old white female who presented with suddent onset of disc edema, esotropia, and field loss, who 2 weeks before had a normal fundus. The diagnosis is right occipital oligodendroglioma.