the nature of the tumours corresponded to : 14 cases of ependymoma , 8 cases of astrocytoma i and ii types , 1 case of astrocytoma of types iii and iv , 3 cases of plexus papilloma , 2 cases of meningioma , 1 case of sarcoma of the basal ganglia , 1 case of teratoma , 3 cases of indifferentiated malignant tumours , 4 cases not proven .
C1261473
sarcoma
C0006826
malignant tumours