... Organization (WHO) classification since 2007 has distinguished 4 main histological subtypes of ependymomas: classic, tanycytic, clear cell, and papillary. In their recent study (which includes also myxopapillary ependymomas and subependymomas, both WHO grade I), Pajtler and colleagues ² classified...

... was incomplete. Patient characteristics and initial treatments are reported in Table 1 . Twelve (67%) patients were males, and 6 (33%) were females, with a median age of 42 years (range 18–61y). Ten (56%) patients had a grade III (anaplastic) ependymoma, whereas 8 (44%) had a grade II ependymoma. Tumor location...

...-speed drill with footplate. B , surgical technique for en bloc circumferential microdissection of an ependymoma away from the spinal cord along a well-defined plane. C , surgical technique for completion of laminoplasty by replacing the lamina with multiple small plates and screws. Used...

... Neurological Institute 350 West Thomas Road Phoenix, Arizona 85013. E-mail: [email protected] Copyright © 2011 by the Congress of Neurological Surgeons 2011 Abstract BACKGROUND: Myxopapillary ependymomas usually occur in the filum terminale of the spinal cord. OBJECTIVE: This report summarizes our...

... rights reserved. For permissions, please e-mail: [email protected] 2010 Abstract Supratentorial ependymomas account for a minority of intracranial ependymomas, which still have uncertain prognostic markers. Among them, epidermal growth factor receptor (EGFR) overexpression...

... protocol. Table 2. Correlations between prognostic factors in WHO grade II adult intracranial ependymomas Characteristics Number of patients Number of patients (% of patients with specified characteristic) Tumor location Extent of surgery Adjuvant RT Infra T Supra T GTR...

[email protected] 12 09 2007 14 12 2007 © 2008 by the Congress of Neurological Surgeons Intramedullary ependymomas Neurological deficit Outcome Surgery Early physical rehabilitation was performed for all patients, excluding the 10 patients who were classified as Grade Ib immediately after surgery...

... is not possible in most cases. However, I cover the cord surgical field with the arachnoid membrane, which may be approximated and sutured as for ependymomas and astrocytomas. In all procedures, the dura is closed with 5-0 nonabsorbable silk sutures, in a watertight manner and without tension. If a biopsy alone...

...Oxford University Press Ependymomas are rare primary central nervous system (CNS) tumors that are thought to arise from ependymal cells lining the ventricular system located throughout the CNS. Ependymomas occur in all age groups but are more common in the pediatric population. Ependymomas...

..., oligodendrogliomas, and ependymomas. Benign lesions of the pineal gland can include pineal cysts, calcifications and meningiomas. Metastatic tumors can also be found in the pineal region. Numerous infectious and inflammatory conditions can mimic pineal tumors. Most patients present with symptoms of hydrocephalus...

... of the questions that arise regarding late effects in brain tumor survivors. central nervous system (CNS) astrocytomas (gliomas) embryonal tumors ependymomas neuronal/mixed glioneuronal tumors craniopharyngiomas germ-Cell Tumors choroid Plexus Tumors Astrocytomas Brainstem central nervous system CNS tumors...

...Oxford University Press Ependymomas which include both subependymoma and myxopapillary ependymoma variants are slow growing tumours of glial origin, believed to arise from radial glial stem cells within the ependymal surface within the central nervous system and spinal cord. Consequently...

... excisions or even just cerebrospinal fluid (CSF) diversion is favoured for older patients with tumours which are less accessible. Excision of tumours, usually ependymomas originating from the floor of the fourth ventricle may be associated with significantly disabling postoperative deficit with can...