نتایج جستجو برای: ependymoma

تعداد نتایج: 1663  

Journal: :Journal of clinical oncology : official journal of the American Society of Clinical Oncology 2017
Thomas E Merchant

Ependymoma is a locally aggressive tumor with metastatic potential that arises in diverse locations throughout the brain and spine in children. Tumor and treatment may result in significant morbidity. Cure remains elusive for many patients owing to diverse biology and resistance to conventional therapy. The implementation of systematic postoperative irradiation in clinical trials during the pas...

2012
Jinhong Jung Wonsik Choi Seung Do Ahn Jin Hong Park Su Ssan Kim Young Seok Kim Sang Min Yoon Si Yeol Song Sang-Wook Lee Jong Hoon Kim Eun Kyung Choi

PURPOSE To evaluated the patterns of failure, survival rate, treatment-related toxicity and prognostic factors in postoperative radiotherapy of patients with ependymoma. MATERIALS AND METHODS Thirty patients who underwent surgery and postoperative radiotherapy for ependymoma between the period of June 1994 and June 2008 were reviewed retrospectively. The age of patients ranged from 21 months ...

Journal: :Pathologica 2016
L Cima S Beccari C Ghimenton G Pinna A Beltramello M Chilosi M Brunelli A Eccher

Signet-ring cell ependymoma is a rare variant of ependymoma with only seven cases described in literature. Biological behavior and prognosis of this entity are not well-known until now. We present a case of a 49-year-old female with a history of headache and gait instability. Magnetic resonance imaging showed an upper cervical tumor with cystic component and mural nodule. The patient underwent ...

Journal: :Turkish neurosurgery 2012
Ahmet Midi Arzu Nese Yener Aydin Sav Rahmi Cubuk

Paraganglioma affecting the cauda equina region is very rare and can be misinterpreted as an ependymoma which is more common at this site. A 38-year-old woman with a paraganglioma in the cauda equina is presented. MRI revealed a well-circumscribed, intradural, extramedullary tumor nodule with the dimensions of 2.5x1x1 cm. The patient underwent L3 laminectomy and total excision o...

2017
Xiao-Gang Tao Zong-Gang Hou Shu-Yu Hao Jun-Ting Zhang Bai-Yun Liu

IntroductIon Tanycytic ependymoma is a rare subtype of the World Health Organization Grade II ependymoma most commonly found in the cervical and thoracic segments of the spinal cord. Spinal tumors in neurofibromatosis type 2 (NF‐2) can be intramedullary, extramedullary, or associated with the nerve roots, and there may be multiple tumors at multiple locations in the spine. The histology of thes...

Journal: :The Canadian journal of neurological sciences. Le journal canadien des sciences neurologiques 1995
O Vernet J P Farmer K Meagher-Villemure J L Montes

BACKGROUND Ependymomas usually arise from the ventricular surface. METHODS We report an 11-year-old female who presented with a supratentorial ectopic ependymoma. RESULTS The patient presented with a two-month-history of progressive headache, nausea and vomiting. Examination revealed papilledema, horizontal nystagmus, diplopia on upward gaze, and right pronator drift. CT scan showed an enha...

Journal: :Radiologia 2012
M I Martínez León M Vidal Denis B Weil Lara

OBJECTIVE To show the main findings for anaplastic ependymoma on MRI. MATERIAL AND METHODS We reviewed all patients diagnosed with anaplastic ependymoma at our tertiary hospital during a six-year period. We recorded the MRI findings for this type of tumor (on conventional sequences following the protocol for the study of CNS tumors, diffusion-weighted imaging, contrast-enhanced sequences, and...

Journal: :Turkish Neurosurgery 2010

Journal: :RadioGraphics 2005

2018
Julia Lang Thomas Czech Irene Slavc Dominik Reisinger Sophie Bartsch Johannes A. Hainfellner Christine Haberler Ellen Gelpi

Correspondence to Ellen Gelpi, MD, EFN Institute of Neurology, Medical University of Vienna, Vienna, Austria, and Neurological Tissue Bank of the BiobancHospital Clinic-IDIBAPS, Barcelona, Spain ellen.gelpimantius@ meduniwien.ac.at, ellen. [email protected]

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