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E Matyja, W Grajkowska, K Stępień, E Naganska
Pilocytic astrocytomas (PAs) are the most frequent primary astroglial tumours affecting children and adolescents. They occur sporadically or in association with a genetically determined syndrome - neurofibromatosis type 1. Classic PA usually manifests as a well-circumscribed, often cystic, slowly growing tumour, which corresponds to WHO grade I. The majority of pilocytic tumours arise along the neuraxis, predominantly in the cerebellum. They are associated with favourable long-term outcome or spontaneous regression, even after incomplete resection...
2016: Folia Neuropathologica
P Papanagiotou, M Politi
Various types of brain tumor can occur in the region of the posterior fossa. Brain metastases in adults are the most common malignancies at this localization. Ependymomas, medulloblastomas and pilocytic astrocytomas occur mostly in children and only rarely in adults. Other tumors that occur in the posterior fossa are meningiomas, schwannomas, hemangioblastomas, brain stem gliomas and epidermoid tumors. Due to the fact that the various tumors of the posterior fossa have different treatment approaches and prognoses, an accurate and specific diagnosis is mandatory...
October 18, 2016: Der Radiologe
Shrikant V Rege, Sharadendu Narayan, Harshad Patil, Abhishek Songara
Myxopapillary ependymoma is a benign slow-growing tumour, arising predominantly in the region of the filum terminale. It has been designated histologically as grade I neoplasm according to the 2007 WHO classification. Despite this benign character dissemination and metastasis along the cerebrospinal axis and metastasis to distant sites have occasionally been reported. There have been previously reported cases of drop metastasis from MPE, however in three of these cases the drop metastasis was diagnosed with concurrent primary spinal MPE...
September 2016: J Spine Surg
Aruna Nambirajan, Mehar C Sharma, Madhu Rajeshwari, Aanchal Kakkar, Vaishali Suri, Chitra Sarkar
Ependymomas are gliomas that recapitulate normal ependymal cells. The epithelial membrane antigen (EMA) shows "dot-like" and "ring-like" staining patterns, highlighting "microlumens" or intracytoplasmic rosettes, a pathognomonic ultrastructural feature. NHERF1/EBP50, an adaptor protein localized at the apical plasma membrane of human epithelia, has been found to localize to these microlumens. We aimed to analyze the staining patterns of EMA and EBP50 in ependymomas and other tumors, and thereby compare their diagnostic utility...
October 7, 2016: Applied Immunohistochemistry & Molecular Morphology: AIMM
Gerd Horneff, Ariane Klein, Prasad T Oommen, Anton Hospach, Ivan Foeldvari, Isa Feddersen, Kirsten Minden
OBJECTIVES: While tumour necrosis factor (TNF)-α-inhibitor treatment improved outcome of juvenile idiopathic arthritis (JIA) management markedly, concerns have been raised about an association of TNF-α-inhibitor treatment and an increased risk for malignancies especially lymphoma. METHODS: Cases of suspected malignancies documented in the German Biker Registry are reviewed in detail. RESULTS: Until Dec 31, 2015, 3695 JIA patients were prospectively followed with a total of more than 13,198 observation years...
September 8, 2016: Clinical and Experimental Rheumatology
James A McCracken, Michael F Gonzales, Pramit M Phal, Katharine J Drummond
Angiocentric glioma (AG) is a low grade glioma, that was first described in 2002. Since this description, 83 patients with AG have been described, including ours. AG typically presents in childhood with medically refractory seizures that are cured with gross surgical resection. Whilst the natural history is that of a benign tumour, there have been reports of recurrence, transformation, and malignant features that suggest that AG is potentially malignant. We add to the literature a case of a 16-year-old girl who presented in May 2011 with a 3-month history of complex partial seizures, with MRI showing a T2-weighted hyperintense lesion in the left insula and inferior frontal lobe...
October 11, 2016: Journal of Clinical Neuroscience: Official Journal of the Neurosurgical Society of Australasia
Didier Frappaz, Alexandre Vasiljevic, Pierre-Aurelien Beuriat, Claire Alapetite, Jacques Grill, Alexandru Szathmari, Cécile Faure-Conter
Ependymomas represent 10% of pediatric brain tumors. In the recent WHO 2016 classification, pathology is enriched by localization and molecular biology. Whatever the age, total removal by one or several looks when required remains a major prognostic factor. In children, focal radiation remains a standard, while the role of chemotherapy is matter of randomized studies. In infants, front line chemotherapy is the standard. Inclusion in the SIOP ependymoma II protocol is encouraged. In case of relapse, further surgery and radiation are advised, while inclusion in innovative trials including re-irradiation, and phase I-II should be encouraged...
October 4, 2016: Bulletin du Cancer
Jason C H Chiang, David W Ellison
Advances in our understanding of the biology of paediatric central nervous system (CNS) tumours have encouraged pathologists to use molecular markers alongside histopathological analysis for disease classification or prognostication and treatment stratification. In this article, we review molecular genetic alterations in paediatric CNS tumours, including those in low-grade and high-grade gliomas, ependymomas, and embryonal tumours. Some of these molecular changes with clinicopathological utility have been used for the first time in the most recent edition of the World Health Organization (WHO) classification of CNS tumours to define entities like ependymoma, RELA fusion-positive or diffuse midline glioma, H3 K27M-mutant...
October 4, 2016: Journal of Pathology
Alvina A Acquaye, Elizabeth Vera, Mark R Gilbert, Terri S Armstrong
BACKGROUND: Outcomes projects can be a catalyst for determining disease- and treatment-related consequences for patients with rare tumors. The Adult Ependymoma Outcomes (AEO) survey uses self-reported experience to evaluate how this tumor affects patient groups throughout the illness trajectory. METHODS: Patients completed the AEO survey via a Web-based portal. The survey included questions on treatment, tumor recurrence, and current health status; the MD Anderson Symptom Inventory Brain Tumor and Spine Tumor modules; and the Medical Outcomes Study 36-Item Short Form Health Survey (SF-36)...
September 28, 2016: Cancer
J B Farr, N D Sabin, C H Hua, F Pirlepesov, J Shin, V Moskvin, D J Indelicato, Z Li, A Gajjar, T E Merchant
No abstract text is available yet for this article.
October 1, 2016: International Journal of Radiation Oncology, Biology, Physics
R Kalash, S M Glaser, G K Balasubramani, J C Flickinger, S Beriwal
No abstract text is available yet for this article.
October 1, 2016: International Journal of Radiation Oncology, Biology, Physics
G Choi, J E Bates, M T Milano
No abstract text is available yet for this article.
October 1, 2016: International Journal of Radiation Oncology, Biology, Physics
C B Hess, D V Wakefield, T E Merchant
No abstract text is available yet for this article.
October 1, 2016: International Journal of Radiation Oncology, Biology, Physics
L J Y Kim, K Yang, J H Suh, E S Murphy, S T Chao
No abstract text is available yet for this article.
October 1, 2016: International Journal of Radiation Oncology, Biology, Physics
R Kotecha, S Modugula, L Angelov, E C Benzel, C A Reddy, R Prayson, I Kalfas, R Schlenk, A Krishnaney, M Steinmetz, W Bingaman, J H Suh, S T Chao
No abstract text is available yet for this article.
October 1, 2016: International Journal of Radiation Oncology, Biology, Physics
Keegan J McClary, Lynn Vidakovic
No abstract text is available yet for this article.
September 2016: PM & R: the Journal of Injury, Function, and Rehabilitation
Ying Liang, Wenhui Yang, Yanhui Zhu, Yulin Yuan
Growing evidence from recent studies has revealed that microRNA-203 (miR-203) might be an attractive prognostic biomarker for cancer. But controversy still remains. The aim of this meta-analysis was to summarize available evidences and clarify the preliminary predictive value of miR-203 for prognosis in cancer patients. Eligible studies were identified through multiple research strategies in PubMed, EMBASE and Web of Science up to October 2015. Key statistics such as pooled hazard ratios (HR) with 95 % confidence intervals (CIs) were utilized to calculate patient survival...
2016: SpringerPlus
Chang-Hyun Lee, Chun Kee Chung, Chi Heon Kim
PURPOSE: Although ependymomas occur in both the brain and the spine, the prognosis is quite varied by tumor location. Spinal ependymomas usually follow a relatively benign course with more favorable prognosis than that of the intracranial ependymomas. The aim of this study is to evaluate the genetic differences between spinal ependymomas and their intracranial counterparts using a meta-analysis. METHODS: We searched PubMed, Embase, Web of Science, and the Cochrane library...
September 16, 2016: European Spine Journal
David J Noble, Daniel Scoffings, Thankamma Ajithkumar, Michael V Williams, Sarah J Jefferies
OBJECTIVE: There is no consensus approach to covering skull base meningeal reflections-and cerebrospinal fluid (CSF) therein-of the posterior fossa cranial nerves (CNs VII-XII) when planning radiotherapy (RT) for medulloblastoma and ependymoma. We sought to determine whether MRI and specifically fast imaging employing steady-state acquisition (FIESTA) sequences can answer this anatomical question and guide RT planning. METHODS: 96 posterior fossa FIESTA sequences were reviewed...
September 29, 2016: British Journal of Radiology
Matthias Schindler, Fabiën N Belle, Michael A Grotzer, Nicolas X von der Weid, Claudia E Kuehni
Population-based studies on childhood cancer survival are key to monitor progress against cancer and to detect potential differences between regions and other subgroups in the population. We investigated time trends and factors associated with childhood cancer survival on a national level in Switzerland, from 1976 to 2013. We extracted data from the population-based Swiss Childhood Cancer Registry of 5,776 children (age 0-14 years) diagnosed with cancer from 1985 to 2014 in Switzerland. We calculated age-adjusted 5-year survival, defined the annual reduction in risk of death (ARR), and explored associations of survival with clinical and demographic factors...
September 15, 2016: International Journal of Cancer. Journal International du Cancer
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