Doctors often treat these tumors with surgery followed by radiation therapy and sometimes chemotherapy. Oligodendroglioma, a relatively rare brain tumor, grows slowly as a rule and is moderately sensitive to radiation therapy. There is a malignant form of oligodendroglioma and a mixed malignant astrocytoma-oligodendroglioma, both of which are treated much like the glioblastoma multiforme. These tumors are found on or near the nerves that travel between the eye and brain vision centers. They are particularly common in people who have neurofibromatosis.
Treatment usually includes surgery or radiation therapy.