Oligodendroglioma

thumb|200px|MRI with gadolinium contrast agent – Oligodendroglioma Oligodendroglioma is a benign to semi-minimal neuroepithelial brain tumor. They make up about 4% of all brain tumors. It is located mainly in the frontal lobe. In 50–80%, it manifests as epileptic seizures. It often contains calcifications (visible on X- rays). Treatment is surgical, as radical as possible, CHT adjuvance (Procarbazine, Vincristine), or RT. Survival rate after ten years is 10-30%.