Surgical Treatment of a Supratentorial Extraventricular Ependymoma: A Case Report.

Supratentorial extraventricular ependymomas (STEE) are very rare primary tumors of the central nervous system (CNS). A 19-year-old man complained of headache, hemiparesis and seizures and was admitted to our hospital. Magnetic resonance imaging (MRI) revealed a right frontal intra-axial lesion.