Table 1.

Clinical and pathologic features of giant cell ependymomas

Age	5-89 years (median =34 years)
Sex	11 male : 10 female (ratio = 1.1:1)
Location	Spinal cord : 10 cases (6 at cervical spinal cord, 2 at filum teminale, and 2 at thoracic spinal cord)
	Supratentorial: 7 cases (2 in temporal , 1 in frontal, 1 in parietal, 1 in occipital, 1 in temporo-parietal and 1 in suprasellar region) (All are extraventricular and 1 extends to the lateral ventricle)
	Cerebellum: 4 cases (3 are extraventricular and 1 in 4th ventricle)
WHO grade	WHO grade II: 15 cases
	WHO Grade III: 6 cases
Treatment	Gross total resection in 17 cases and subtotal resection in one case
	Radiation therapy for 3 cases after surgery
	Chemotherapy and radiation therapy for 3 cases
Follow-up time and prognosis	1.5-35 months (median = 7 months)
	5 patients had recurrence (4 WHO grade III and 1 WHO grade II)
	1 patient died of anaplastic ependymoma (WHO grade III)
	1 patient with WHO grade II ependymoma died of surgical complication