An<unk>  is a tumor that arises from the ependyma, a tissue of the central nervous system. Usually, in pediatric cases the location is intracranial, while in adults it is spinal. The common location of intracranial<unk> s is the fourth ventricle. Rarely,<unk> s can occur in the pelvic cavity. Syringomyelia can be caused by an<unk> .<unk> s are also seen with neurofibromatosis type II.
Ependymoma
Subependymoma
Neurothekeoma
Central neurocytoma
Ganglioglioma
Pilocytic astrocytoma
Astroblastoma
Schwannoma