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Ependymoma

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https://www.readbyqxmd.com/read/29239262/outcomes-following-proton-therapy-for-pediatric-ependymoma
#1
Daniel J Indelicato, Julie A Bradley, Ronny L Rotondo, Ronica H Nanda, Natalie Logie, Eric S Sandler, Philipp R Aldana, Nathan J Ranalli, Alexandra D Beier, Christopher G Morris, Nancy P Mendenhall
BACKGROUND: Proton therapy can reduce the low and intermediate radiation dose to uninvolved brain tissue in children with intracranial ependymomas, which may improve functional outcomes and reduce second malignancies in survivors. Accordingly, ependymoma has become the most common pediatric tumor treated with proton therapy, yet data on efficacy and toxicity are limited. MATERIAL AND METHODS: Between June 2007 and February 2017, 179 children (≤21 years old) with nonmetastatic grade II/III intracranial ependymoma received proton therapy at our institution...
December 14, 2017: Acta Oncologica
https://www.readbyqxmd.com/read/29229328/outcomes-after-reirradiation-for-recurrent-pediatric-intracranial-ependymoma
#2
Derek S Tsang, Elizabeth Burghen, Paul Klimo, Frederick A Boop, David W Ellison, Thomas E Merchant
PURPOSE: To determine the long-term outcomes and the optimal dose and volume for reirradiation of recurrent pediatric ependymoma. METHODS AND MATERIALS: Patients with recurrent ependymoma treated with a second course of fractionated radiation therapy (RT2) were reviewed retrospectively. Eligible patients had localized, intracranial ependymoma at initial diagnosis that was treated with focal radiation (RT1) without craniospinal irradiation (CSI) and were aged ≤21 years at the time of RT2...
October 13, 2017: International Journal of Radiation Oncology, Biology, Physics
https://www.readbyqxmd.com/read/29226988/cns-high-grade-neuroepithelial-tumor-with-bcor-internal-tandem-duplication-a-comparison-with-its-counterparts-in-the-kidney-and-soft-tissue
#3
Yuka Yoshida, Sumihito Nobusawa, Satoshi Nakata, Mitsutoshi Nakada, Yoshiki Arakawa, Yohei Mineharu, Yasuo Sugita, Takako Yoshioka, Asuka Araki, Yuichiro Sato, Hideo Takeshima, Masahiko Okada, Akira Nishi, Tatsuya Yamazaki, Kenichi Kohashi, Yoshinao Oda, Junko Hirato, Hideaki Yokoo
Central nervous system high-grade neuroepithelial tumors with BCOR alteration (CNS HGNET-BCOR) are a recently reported rare entity, identified as a small fraction of tumors previously institutionally diagnosed as so-called CNS primitive neuroectodermal tumors. Their genetic characteristic is a somatic internal tandem duplication in the 3' end of BCOR (BCOR ITD), which has also been found in clear cell sarcomas of the kidney (CCSK) and soft tissue undifferentiated round cell sarcomas/primitive myxoid mesenchymal tumors of infancy (URCS/PMMTI), and these BCOR ITD-positive tumors have been reported to share similar pathological features...
December 11, 2017: Brain Pathology
https://www.readbyqxmd.com/read/29225135/adult-spinal-ependymomas-an-epidemiological-study
#4
Syed I Khalid, Ryan Kelly, Owoicho Adogwa, Ankit Metha, Carlos Bagley, Joseph Cheng, John O'Toole
OBJECTIVE: In adults, spinal ependymomas constitute only 3-6% of central nervous system tumors. Due to their rarity and poor prognosis, large population-based studies are needed to assess the epidemiology and survival risk factors associated with these tumors in the hope of improving outcome. The authors undertook this retrospective study to explore factors that may influence survival in adult patients with spinal ependymomas. METHODS: Utilizing the Surveillance, Epidemiology, and End Results (SEER) database, a prospective cancer registry, the authors retrospectively assessed survival in histologically confirmed spinal ependymomas in patients 18 years of age and older...
December 7, 2017: World Neurosurgery
https://www.readbyqxmd.com/read/29219779/metastases-of-spinal-myxopapillary-ependymoma-unique-characteristics-and-clinical-management
#5
Theresa Kraetzig, Lily McLaughlin, Mark H Bilsky, Ilya Laufer
OBJECTIVE Myxopapillary ependymoma is a benign WHO Grade I tumor most commonly located in the conus-cauda equina region of the spine. Although this tumor is defined by an overall excellent survival, dissemination throughout the whole neuraxis occurs frequently. The current study evaluated the clinical characteristics and significance of myxopapillary ependymoma metastases. METHODS Patients who underwent surgery from 2005 to 2015 for treatment of spinal myxopapillary ependymoma were included in the study. Charts were reviewed for primary tumor symptoms and initial treatment, local recurrence, response to salvage therapy, and presence and behavior of distant metastases...
December 8, 2017: Journal of Neurosurgery. Spine
https://www.readbyqxmd.com/read/29215699/lncrna-linc00880-promotes-cell-proliferation-migration-and-invasion-while-inhibiting-apoptosis-by-targeting-cacng5-through-the-mapk-signaling-pathway-in-spinal-cord-ependymoma
#6
Dong-Mei Wu, Yong-Jian Wang, Xin-Rui Han, Xin Wen, Shan Wang, Min Shen, Shao-Hua Fan, Juan Zhuang, Zi-Feng Zhang, Qun Shan, Meng-Qiu Li, Bin Hu, Chun-Hui Sun, Jun Lu, Yuan-Lin Zheng
The present study was to investigate the effect of lncRNA LINC00880 targeting CACNG5 on cell proliferation, migration, invasion and apoptosis in spinal cord ependymoma (SCE) through the MAPK signaling pathway. GEO database was used to download gene expression data related with SCE (GSE50161 and GSE66354) and annotation file. LncRNA with differential expression was predicted by Multi Experiment Matrix website (MEM). The target gene was analyzed by KEGG pathway enrichment analysis. SCE tissues and adjacent tissues were collected...
December 7, 2017: Journal of Cellular Physiology
https://www.readbyqxmd.com/read/29204199/clinicopathological-study-of-pediatric-posterior-fossa-tumors
#7
Kadali Satya Vara Prasad, D Ravi, Vijay Pallikonda, Bhavana Venkata Satya Raman
Context: Brain tumor is one of the most devastating forms of human illness, especially when occurring in the posterior fossa and involving the brainstem. Tumors in the posterior fossa are considered some of the most critical brain lesions. This is primarily due to the limited space within the posterior fossa, as well as the potential involvement of the vital brainstem nuclei. Aims: The aim of this study is to analyze the incidence, clinical features, surgical outcome, complications, and prognosis in a series of 37 pediatric patients with posterior fossa tumors who underwent surgery between September 2012 and January 2015 from the Department of Neurosurgery, King George Hospital, Visakhapatnam (both prospective and retrospective study)...
July 2017: Journal of Pediatric Neurosciences
https://www.readbyqxmd.com/read/29204195/magnitude-of-neurogenic-tumor-burden-in-pediatric-population-a-tertiary-care-center-study
#8
Shagufta Qadri, Mahboob Hasan, Kafil Akhtar
Objective: Progress in the diagnosis and treatment of childhood neoplasm in the past few decades is one of the most gratifying achievements in the field of oncology. This study was aimed to ascertain the burden (incidence and prevalence) and histopathologic features of neurogenic tumors occurring in the pediatric population. Materials and Methods: The study evaluated a total of 492 cases of pediatric tumors over a period of 8 years from 2007 to 2015, including patients of 0-12 years of age group; attending the out-patients and in-patients Department of Pediatrics and Pediatric Surgery at Jawaharlal Nehru Medical College, AMU, Aligarh, with the complaints of tumor or tumor associated sign and symptoms...
July 2017: Journal of Pediatric Neurosciences
https://www.readbyqxmd.com/read/29204027/a-simplified-overview-of-world-health-organization-classification-update-of-central-nervous-system-tumors-2016
#9
REVIEW
Anshu Gupta, Tanima Dwivedi
After 8 years, an update of central nervous system (CNS) tumors was published in 2016 after 2007. First time ever, molecular markers along with histology have been used in classification of any tumor. Major changes are seen in glioma and medulloblastoma groups. Few entities have been added such as diffuse midline glioma, H3 K27M-mutant, RELA fusion-positive ependymoma, embryonal tumor with multilayered rosettes, C19MC-altered, and hybrid nerve sheath tumors. Few variants and patterns that no longer have diagnostic and/or biological relevance and have been deleted such as glioblastoma cerebri, protoplasmic and fibrillary astrocytoma, and cellular ependymoma...
October 2017: Journal of Neurosciences in Rural Practice
https://www.readbyqxmd.com/read/29200119/pediatric-brain-tumors
#10
Mai Dang, Peter C Phillips
PURPOSE OF REVIEW: This article describes the most common pediatric brain tumors and highlights recent developments in their diagnosis and treatment strategies. RECENT FINDINGS: We are in the midst of a molecular era for pediatric brain tumors. Genetic and epigenetic profiling of tumors has impacted their diagnosis, allowing for the subgrouping of heterogeneous tumor groups and leading to the complete renaming of some tumor types. These advances are reflected in the new 2016 World Health Organization classification...
December 2017: Continuum: Lifelong Learning in Neurology
https://www.readbyqxmd.com/read/29200109/2016-world-health-organization-classification-of-central-nervous-system-tumors
#11
Patrick Y Wen, Jason T Huse
PURPOSE OF REVIEW: Since 1979, the World Health Organization (WHO) has periodically published a consensus classification and grading of tumors of the central nervous system (CNS) to ensure uniform histopathologic diagnostic criteria worldwide. In 2016, the WHO published an update of the fourth edition of the classification of CNS tumors. This article summarizes the major changes in the update and discusses their impact on clinical practice. RECENT FINDINGS: For the first time, the 2016 revision of the WHO classification uses molecular parameters in addition to traditional histology to diagnose many CNS tumors, resulting in major restructuring of the classification of many tumors, especially gliomas, ependymomas, and medulloblastomas...
December 2017: Continuum: Lifelong Learning in Neurology
https://www.readbyqxmd.com/read/29194500/eano-guidelines-for-the-diagnosis-and-treatment-of-ependymal-tumors
#12
Roberta Rudà, Guido Reifenberger, Didier Frappaz, Stefan M Pfister, Anne Laprie, Thomas Santarius, Patrick Roth, Joerg Christian Tonn, Riccardo Soffietti, Michael Weller, Elizabeth Cohen-Jonathan Moyal
Ependymal tumors are rare CNS tumors and may occur at any age, but their proportion among primary brain tumors is highest in children and young adults. Thus, the level of evidence of diagnostic and therapeutic interventions is higher in the pediatric compared with the adult patient population.The diagnosis and disease staging is performed by craniospinal MRI. Tumor classification is achieved by histological and molecular diagnostic assessment of tissue specimens according to the World Health Organization (WHO) classification 2016...
November 29, 2017: Neuro-oncology
https://www.readbyqxmd.com/read/29189641/mri-characteristics-of-spinal-ependymoma-in-who-grade-ii-a-review-of-59-cases
#13
Kazuyoshi Kobayashi, Shiro Imagama, Fumihiko Kato, Tokumi Kanemura, Koji Sato, Mitsuhiro Kamiya, Kei Ando, Kenyu Ito, Mikito Tsushima, Akiyuki Matsumoto, Masayoshi Morozumi, Satoshi Tanaka, Masaaki Machino, Yoshihiro Nishida, Naoki Ishiguro
STUDY DESIGN: Retrospective multicenter study. OBJECTIVE: The goal of this study is to determine the characteristic imaging features of spinal ependymoma in a review of MRI data for a large series of surgically proven cases. SUMMARY OF BACKGROUND DATA: Common spinal intramedullary neoplasms are mostly ependymomas and comprise 50-60% of spinal neuroepithelial tumors in adults. Preoperative prediction of the pathological diagnosis could enhance surgical planning and explanation of the procedure to patients...
November 20, 2017: Spine
https://www.readbyqxmd.com/read/29188529/spinal-ependymomas-in-nf2-a-surgical-disease
#14
M Kalamarides, W Essayed, J P Lejeune, R Aboukais, O Sterkers, D Bernardeschi, M Peyre, S K Lloyd, S Freeman, C Hammerbeck-Ward, M Kellett, S A Rutherford, D G Evans, O Pathmanaban, A T King
The management of spinal cord ependymomas in Neurofibromatosis Type 2 (NF2) has traditionally been conservative, in contrast to the management of sporadic cases; the assumption being that, in the context of NF2, they did not cause morbidity. With modern management and improved outcome of other NF2 tumours, this assumption, and therefore the lack of role for surgery, has been questioned. To compare the outcome of conservative treatment of spinal ependymomas in NF2 with surgical intervention in selected patients...
November 29, 2017: Journal of Neuro-oncology
https://www.readbyqxmd.com/read/29188216/extra-axial-and-clear-cell-type-ependymoma-mimicking-a-convexity-meningioma
#15
Stephen Ahn, Young Joo Kim, Youn Soo Lee, Sin-Soo Jeun
A 33-year-old woman presented with tingling and paresthesia on left extremity for 2 months. Magnetic resonance imaging revealed that the tumor was iso- and hypo-intensity on T1-weighted image, mixed iso- and high-signal intensity on T2-weighted images and heterogeneously enhanced with rim enhancement. Neither arachnoid cleft nor dural tail was certain but mass was located extra-axially so meningioma was suspected. During operation, tumor wasn't attached to dura at all but arachnoid attachment was seen. Pathologically, clear cell type ependymoma was confirmed...
October 2017: Brain Tumor Research and Treatment
https://www.readbyqxmd.com/read/29188210/pituitary-ependymoma-10-year-follow-up-after-partial-resection-and-radiation-therapy
#16
Jong Seok Lee, Kwan Ho Cho, Eun Kyung Hong, Sang-Hoon Shin
Ependymoma usually arises within the ventricles and central canal of the spinal cord. These tumors, found in the sellar region, are extremely rare. We report a case of pituitary ependymoma followed up over 10 years. A 59-year-old male patient presented with fatigue, general weakness, erectile dysfunction, and loss of body hair, including pubic hair. Brain magnetic resonance imaging (MRI) revealed a 3.3×3.5×2.3-cm sellar and suprasellar snowman-shaped enhancing mass. The tumor was partially resected via the trans-sphenoidal approach followed by postoperative radiation therapy...
October 2017: Brain Tumor Research and Treatment
https://www.readbyqxmd.com/read/29188207/ependymomas-prognostic-factors-and-outcome-analysis-in-a-retrospective-series-of-33-patients
#17
Yong-Hyun Chai, Shin Jung, Jung-Kil Lee, In-Young Kim, Woo-Youl Jang, Kyung-Sub Moon, Jae-Hyoo Kim, Kyung-Hwa Lee, Seul-Kee Kim, Tae-Young Jung
Background: The purpose of this study was to evaluate the prognostic factors and outcomes in patients with ependymoma to management plans. Methods: Between 1997 and 2013, 33 patients with 25 ependymomas (WHO grade II) and eight anaplastic ependymomas (WHO grade III) were pathologically diagnosed. Six were pediatric patients (mean age, 6.15 years; range, 1.3-11 years), while 27 were adults (mean age, 47.5 years; range, 19-70 years). Of those, there were 12 adult patients with totally resected ependymomas without anaplastic pathology and adjuvant treatment...
October 2017: Brain Tumor Research and Treatment
https://www.readbyqxmd.com/read/29166763/an-extremely-rare-cause-of-back-and-hip-pain-due-to-the-metastasis-of-late-recurrent-myxopapillary-ependymoma-to-the-inguinal-lymph-node
#18
Suheyla Ekemen, Ozlem Yapicier, Hatice Deniz Boler, Umit Ince
No abstract text is available yet for this article.
November 23, 2017: Journal of Pathology and Translational Medicine
https://www.readbyqxmd.com/read/29165771/recent-perspectives-of-ependymomas-childhood-brain-tumors
#19
Z-D Zeng, F-L Liu, S-X Li
Ependymomas are childhood brain tumors that occur throughout the central nervous system, but are most common in the hindbrain, also known as the posterior fossa (PF). Current standard therapy comprises maximal safe surgery, and there is no scope for further increase in survival. Despite the histological similarity, ependymomas from throughout the neuroaxis likely comprise multiple independent entities, each with a distinct molecular pathogenesis. The present review article would discuss both genetics and epigenetics of ependymomas...
October 2017: European Review for Medical and Pharmacological Sciences
https://www.readbyqxmd.com/read/29161788/aggressive-supratentorial-ependymoma-rela-fusion-positive-with-extracranial-metastasis-a-case-report
#20
Seong-Ik Kim, Yoojin Lee, Seung Ki Kim, Hyoung Jin Kang, Sung-Hye Park
Ependymoma is the third most common pediatric primary brain tumor. Ependymomas are categorized according to their locations and genetic abnormalities, and these two parameters are important prognostic factors for patient outcome. For supratentorial (ST) ependymomas, RELA fusion-positive ependymomas show a more aggressive behavior than YAP1 fusion-positive ependymomas. Extracranial metastases of intra-axial neuroepithelial tumors are extremely rare. In this paper, we report a case of aggressive anaplastic ependymoma arising in the right frontoparietal lobe, which had genetically 1q25 gain, CDKN2A homozygous deletion, and L1CAM overexpression...
November 2017: Journal of Pathology and Translational Medicine
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