4,663 results match your criteria Oligodendroglioma


Concurrent Versus Sequential Chemoradiation for Low-grade Gliomas Meeting RTOG 9802 Criteria.

Am J Clin Oncol 2019 Feb 12. Epub 2019 Feb 12.

Departments of Radiation Oncology.

Purpose: Radiation Therapy Oncology Group (RTOG) 9802 has established postoperative radiation therapy (RT) and chemotherapy sequentially as the new standard of care for patients with high-risk low-grade glioma (LGG) meeting trial criteria. Although this trial investigated sequential chemoradiation therapy (sCRT) with RT followed by chemotherapy, it is unknown whether concurrent chemoradiation therapy (cCRT) may offer advantages over sCRT.

Materials And Methods: The National Cancer Database (NCDB) was queried for newly diagnosed World Health Organization (WHO) grade II glioma. Read More

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http://dx.doi.org/10.1097/COC.0000000000000519DOI Listing
February 2019

Widely metastatic IDH1-mutant glioblastoma with oligodendroglial features and atypical molecular findings: a case report and review of current challenges in molecular diagnostics.

Diagn Pathol 2019 Feb 9;14(1):16. Epub 2019 Feb 9.

Brain Cancer Program, Sidney Kimmel Comprehensive Cancer Center at Johns Hopkins, 1550 Orleans Street, 1M16, Baltimore, MD, 21287, USA.

Background: Gliomas with 1p/19q-codeletion as well as mutation of isocitrate dehydrogenase (IDH) 1 are typically characterized as oligodendrogliomas with comparatively good response to treatment with radiation and chemotherapy.

Case Presentation: We present the case of a 28-year-old man with an IDH1 and TP53 mutant high grade glioma with abnormalities in chromosomes 1 and 19 suggestive of anaplastic oligodendroglioma that rapidly progressed to widespread metastatic disease. Biopsy of a liver lesion confirmed metastasis of the patient's known brain primary and chemotherapy with temozolomide was initiated. Read More

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https://diagnosticpathology.biomedcentral.com/articles/10.11
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http://dx.doi.org/10.1186/s13000-019-0793-5DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6368694PMC
February 2019
4 Reads

Dynamic susceptibility contrast and diffusion MR imaging identify oligodendroglioma as defined by the 2016 WHO classification for brain tumors: histogram analysis approach.

Neuroradiology 2019 Feb 2. Epub 2019 Feb 2.

Department of Radiology, Oslo University Hospital-Rikshospitalet, 4950 Nydalen, 0424, Oslo, Norway.

Purpose: According to the revised World Health Organization (WHO) Classification of Tumors of the Central Nervous System (CNS) of 2016, oligodendrogliomas are now defined primarily by a specific molecular signature (presence of IDH mutation and 1p19q codeletion). The purpose of our study was to assess the value of dynamic susceptibility contrast MR imaging (DSC-MRI) and diffusion-weighted imaging (DWI) to characterize oligodendrogliomas and to distinguish them from astrocytomas.

Methods: Seventy-one adult patients with untreated WHO grade II and grade III diffuse infiltrating gliomas and known 1p/19q codeletion status were retrospectively identified and analyzed using relative cerebral blood volume (rCBV) and apparent diffusion coefficient (ADC) maps based on whole-tumor volume histograms. Read More

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http://dx.doi.org/10.1007/s00234-019-02173-5DOI Listing
February 2019
1 Read

Predicting chromosome 1p/19q codeletion by RNA expression profile: a comparison of current prediction models.

Aging (Albany NY) 2019 Feb 2. Epub 2019 Feb 2.

Beijing Neurosurgical Institute, Capital Medical University, Beijing, China.

Background: Chromosome 1p/19q codeletion is increasingly being recognized as the crucial genetic marker for glioma patients and have been included in WHO classification of glioma in 2016. Fluorescent in situ hybridization, a widely used method in detecting 1p/19q status, has some methodological limitations which might influence the clinical management for doctors. Here, we attempted to explore an RNA sequencing computational method to detect 1p/19q status. Read More

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http://dx.doi.org/10.18632/aging.101795DOI Listing
February 2019
1 Read

Targeted next-generation sequencing panel (TruSight Tumor 170) in diffuse glioma: a single institutional experience of 135 cases.

J Neurooncol 2019 Feb 1. Epub 2019 Feb 1.

Department of Pathology, Yonsei University College of Medicine, Severance Hospital, Seoul, Republic of Korea.

Purpose: The TruSight Tumor 170 (TST-170) panel consists of a DNA workflow for the identification of single-nucleotide variants, small insertions and deletions, and copy number variation, as well as a panel of 55 genes for a RNA workflow for the identification of splice variants and gene fusions. To date, the application of TST-170 in diffuse gliomas (DGs) has not been described.

Methods: We analyzed 135 samples of DG, which were diagnosed by WHO criteria based on histological features and conventional molecular tests including immunostaining, 1p/19q FISH, and analysis of MGMT methylation and TERT promoter mutation. Read More

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http://dx.doi.org/10.1007/s11060-019-03114-1DOI Listing
February 2019
5 Reads

Prognostic factors associated with survival in patients with anaplastic oligodendroglioma.

PLoS One 2019 30;14(1):e0211513. Epub 2019 Jan 30.

Neurology Department, First Affiliated Hospital of Shantou University Medical College, Shantou, Guangdong, China.

Anaplastic oligodendroglioma is a rare disease with an inadequately understood prognosis. The aim of this study was to investigate factors associated with survival outcome in anaplastic oligodendroglioma patients. A population-based cohort study was conducted based on the Surveillance, Epidemiology, and End Results program. Read More

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http://journals.plos.org/plosone/article?id=10.1371/journal.pone.0211513PLOS
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6353193PMC
January 2019

Influence of pregnancy on glioma patients.

Acta Neurochir (Wien) 2019 Jan 29. Epub 2019 Jan 29.

Department of Neurosurgery, Goethe University Hospital, Schleusenweg 2-16, 60528, Frankfurt am Main, Germany.

Background: Data about the influence of pregnancy on progression-free survival and overall survival of glioma patients are sparse and controversial. We aimed at providing further evidence on this relation.

Methods: The course of 18 glioma patients giving birth to 23 children after tumor surgery was reviewed and compared to the course of 18 nulliparous female patients matched for tumor diagnosis including molecular markers, extent of resection, and tumor location. Read More

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http://dx.doi.org/10.1007/s00701-019-03823-6DOI Listing
January 2019
1 Read

Influence of molecular classification in anaplastic glioma for determining outcome and future approach to management.

J Med Imaging Radiat Oncol 2019 Jan 24. Epub 2019 Jan 24.

Northern Sydney Cancer Centre, Royal North Shore Hospital, Sydney, New South Wales, Australia.

Introduction: Assess survival of patients with anaplastic glioma (AG) and the relationship to molecular subtype.

Methods: Patients with AG managed with IMRT between 2008 and 2014 were entered into a prospective database assessing relapse-free survival (RFS) and overall survival (OS). Isocitrate dehydrogenase (IDH) mutations were assessed prospectively from 2011, and subsequent testing of historical patients allowing categorisation under WHO 2016 classification as anaplastic astrocytoma IDH wild type (AAwt), anaplastic astrocytoma IDH mutated (AAmut), anaplastic oligodendroglioma (AOD) or other glial tumour (OTH). Read More

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http://dx.doi.org/10.1111/1754-9485.12850DOI Listing
January 2019
2 Reads

Determination of genetic aberrations and novel transcripts involved in the pathogenesis of oligodendroglioma using array comparative genomic hybridization and next generation sequencing.

Oncol Lett 2019 Feb 7;17(2):1675-1687. Epub 2018 Dec 7.

Cancer Research Center, Institute for Medical Research, Jalan Pahang, 50588 Kuala Lumpur, Malaysia.

The aim of the present study was to determine the genetic aberrations and novel transcripts, particularly the fusion transcripts, involved in the pathogenesis of low-grade and anaplastic oligodendroglioma. In the present study, tissue samples were obtained from patients with oligodendroglioma and additionally from archived tissue samples from the Brain Tumor Tissue Bank of the Brain Tumor Foundation of Canada. Six samples were obtained, three of which were low-grade oligodendroglioma and the other three anaplastic oligodendroglioma. Read More

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http://dx.doi.org/10.3892/ol.2018.9811DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6341554PMC
February 2019

Anaplastic Oligodendroglioma Found as an Incidental Photopenic Lesion on 18F-FP-CIT PET/CT Image.

Clin Nucl Med 2019 Mar;44(3):e168-e169

From the Department of Nuclear Medicine and Molecular Imaging, Ajou University School of Medicine, Suwon, South Korea.

F-FP-CIT PET is a useful modality for imaging dopamine transporters. It has excellent resolution compared with I-beta-CIT SPECT and is widely used clinically for the evaluation of Parkinson disease. In general, the main focus of F-FP-CIT PET imaging is the basal ganglia, and it is important to observe whether F-FP-CIT uptake is normal in the putamen and caudate nuclei. Read More

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http://dx.doi.org/10.1097/RLU.0000000000002459DOI Listing
March 2019
3.931 Impact Factor

Differences in patterns of care and outcomes between grade II and grade III molecularly defined 1p19q co-deleted gliomas.

Clin Transl Radiat Oncol 2019 Feb 31;15:46-52. Epub 2018 Dec 31.

Department of Therapeutic Radiology, Yale University School of Medicine, New Haven, CT, United States.

Molecular markers are redefining classification of lower grade gliomas and ushering in a paradigm shift in their management. Our objective was to evaluate the differences in pattern of care and outcome by comparing grade II and grade III molecularly defined 1p19q co-deleted gliomas. We evaluated 1618 patients in the National Cancer Database diagnosed with 1p19q co-deleted gliomas from 2010 through 2014 and treated with surgery followed by radiation therapy (RT), chemotherapy (CT), or combined-modality therapy. Read More

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http://dx.doi.org/10.1016/j.ctro.2018.12.003DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6329703PMC
February 2019

Prognostic value of 1p/19q chromosomal codeletion in patients with oligodendroglioma.

J Pak Med Assoc 2019 Jan;69(1):132-134

Department of Surgery, Section of Neurosurgery, Aga Khan University Hospital, Karachi. Pakistan.

Oligodendrogliomas are common intra-axial primary brain tumours, and carry special significance due to several key features, which when present provide better prognosis compared to other intra-axial tumours. One of these features is presence of 1p/19q chromosomal codeletion that seems to not only be a marker of better prognosis but also signifies better response to chemotherapy. Herein the authors review the literature for evidence of the prognostic value of 1p/19q codeletion in OD. Read More

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January 2019

Synthesis of New Potential Lipophilic Co-Drugs of 2-Chloro-2'-deoxyadenosine (Cladribine, 2CdA, Mavenclad®, Leustatin®) and 6-Azauridine (z6U) with Valproic Acid.

Chem Biodivers 2018 Dec 21. Epub 2018 Dec 21.

Institute for Anatomy and Cell Biology, Department of Medical Cell Biology, Philipps-University of Marburg, Robert-Koch-Str. 8, D-35032 Marburg, GERMANY.

2-Chloro-2'-deoxyadenosine (Cladribine, 1) was acylated with valproic acid (2) under various reaction conditions yielding 3',5'-O-divalproyl-2-chloro-2'-deoxyadenosine (3) as well as the 3'-O- and 5'-O monovalproylated derivatives (4, 5) as new co-drugs. In addition, 6-azauridine-O-2',3'-ethyllevulinate (8) was valproylated at the 5'-OH group (→ 9). All products were characterized by 1H- and 13C-NMR spectroscopy and by ESI mass spectrometry. Read More

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http://dx.doi.org/10.1002/cbdv.201800497DOI Listing
December 2018
2 Reads

Insular glioma surgery: an evolution of thought and practice.

J Neurosurg 2019 Jan;130(1):9-16

OBJECTIVEThe goal of this article is to review the history of surgery for low- and high-grade gliomas located within the insula with particular focus on microsurgical technique, anatomical considerations, survival, and postoperative morbidity.METHODSThe authors reviewed the literature for published reports focused on insular region anatomy, neurophysiology, surgical approaches, and outcomes for adults with World Health Organization grade II-IV gliomas.RESULTSWhile originally considered to pose too great a risk, insular glioma surgery can be performed safely due to the collective efforts of many individuals. Read More

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http://dx.doi.org/10.3171/2018.10.JNS181519DOI Listing
January 2019
5 Reads

Allergy may confer better survival on patients with gliomas.

Clin Neurol Neurosurg 2019 Feb 31;177:63-67. Epub 2018 Dec 31.

Department of Radiation Oncology, Icahn School of Medicine at Mount Sinai, New York, United States; Severn Health Solutions, Severna Park, MD, United States.

Objectives: Glioma susceptibility is inversely related to a history of allergies and atopy. Lung allergies are associated with 30% lower glioma susceptibility, compared to no lung allergies. Asthma and eczema also reduce the chance of glioma. Read More

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https://linkinghub.elsevier.com/retrieve/pii/S03038467183048
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http://dx.doi.org/10.1016/j.clineuro.2018.12.021DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6351160PMC
February 2019
8 Reads

Sequencing of Chemotherapy and Radiotherapy for Newly Diagnosed Anaplastic Oligodendroglioma and Oligoastrocytoma.

Am J Clin Oncol 2018 Dec 27. Epub 2018 Dec 27.

Department of Radiation Oncology, Allegheny General Hospital, Pittsburgh, PA.

Introduction: Adjuvant management of anaplastic oligodendrogliomas (AOs) and anaplastic oligoastrocytomas (AOAs) is guided by 2 seminal phase III trials, one of which utilized radiotherapy (RT) followed by chemotherapy (CT) (RT-CT), and the other in which CT was followed by RT (CT-RT). Both paradigms are endorsed by the National Comprehensive Cancer Network because no direct comparison in the first-line (nonprogressive) setting has been performed to date. This study of a contemporary national database sought to evaluate practice patterns and outcomes between both approaches. Read More

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http://dx.doi.org/10.1097/COC.0000000000000511DOI Listing
December 2018
1 Read

Supracerebellar Transtentorial Approach for Occipital Meningioma to Maximize Visual Preservation: Technical Note.

Oper Neurosurg (Hagerstown) 2018 Dec 19. Epub 2018 Dec 19.

Department of Neurosurgery, North Shore University Hospital, Zucker School of Medicine at Hofstra/Northwell, Manhasset, New York.

Background And Importance: Surgery for resection of tentorial meningiomas compressing primary visual cortex carries a significant risk of worsening vision. This concern is especially acute in patients with a preexisting visual deficit. Approaches that involve mechanical retraction of the occipital lobe further threaten visual function. Read More

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https://academic.oup.com/ons/advance-article/doi/10.1093/ons
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http://dx.doi.org/10.1093/ons/opy380DOI Listing
December 2018
6 Reads

Eighty percent survival rate at 15 years for 1p/19q co-deleted oligodendroglioma treated with upfront chemotherapy irrespective of tumor grade.

J Neurooncol 2019 Jan 18;141(1):205-211. Epub 2018 Dec 18.

Department of Neurological Surgery, Chiba University Graduate School of Medicine, 1-8-1 Inohana, Chuo-ku, Chiba, 260-8670, Chiba, Japan.

Introduction: Chromosomes 1p/19q co-deletion is a robust molecular marker for the diagnosis of oligodendroglial tumors, and has been included in the 2016 WHO modified classification. Although treatment for oligodendroglioma is controversial, upfront chemotherapy is regarded as one of the treatment option for low-grade tumor. We have treated all the 1p/19q co-deleted oligodendrogliomas, both grades II and III, with upfront chemotherapy without conventional radiotherapy for 20 years. Read More

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http://link.springer.com/10.1007/s11060-018-03027-5
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http://dx.doi.org/10.1007/s11060-018-03027-5DOI Listing
January 2019
2 Reads

Anaplastic oligodendroglioma metastasizing to the bone marrow: a unique case report and literature review.

Int J Neurosci 2018 Dec 11:1-7. Epub 2018 Dec 11.

c Baptist Health , Louisville , KY , USA.

Oligodendrogliomas are a rare type of primary brain tumor. They are genetically defined as diffuse gliomas carrying mutation in isocitrate dehydrogenase type 1 (IDH1) or type 2 (IDH2) and codeletion of chromosomes 1p and 19q. The WHO grading system distinguishes two histopathologic grades of ODs: grade II (low-grade) and grade III (anaplastic oligodendroglioma or AO). Read More

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http://dx.doi.org/10.1080/00207454.2018.1557165DOI Listing
December 2018
3 Reads

Molecular profile of tumors with oligodendroglial morphology: Clinical relevance.

Neurol India 2018 Nov-Dec;66(6):1726-1731

Department of Radiotherapy, Christian Medical College, Vellore, Tamil Nadu, India.

Background: The plethora of biomarkers available for the diagnosis and prognostication of gliomas has refined the classification of gliomas. The new World Health Organization (WHO) 2016 classification integrates the phenotypic and genotyping features for a more robust diagnosis.

Materials And Methods: Fifty gliomas with oligodendroglial morphology according to the WHO 2007 classification were analyzed for isocitrate dehydrogenase 1 and 2 (IDH1/2) mutations by polymerase chain reaction, 1p/19q status by fluorescent in situ hybridization (FISH), and IDH1 and X-linked alpha-thalassemia retardation (ATRX) expression by immunohistochemistry. Read More

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http://dx.doi.org/10.4103/0028-3886.246275DOI Listing
December 2018
1 Read

Tumour-to-Tumour Metastasis Phenomenon: Metastatic Prostatic Adenocarcinoma within an Anaplastic Oligodendroglioma in the Brain of a Dog.

J Comp Pathol 2018 Nov 29;165:62-66. Epub 2018 Oct 29.

Department of Animal Medicine and Surgery, Veterinary Faculty, Cerdanyola del Vallès, Spain; Networking Research Centre on Bioengineering, Biomaterials and Nanomedicine (CIBER-BBN), Universitat Autònoma de Barcelona, Cerdanyola del Vallès, Spain.

A 10-year-old entire male French bulldog was presented following clusters of generalized tonic-clonic epileptic seizures. Neurolocalization was consistent with a lesion in the left forebrain. Magnetic resonance imaging of the brain revealed a large, ill-defined, intra-axial, space-occupying lesion at the level of the left temporal and parietal lobes, causing marked compression of the adjacent parenchyma. Read More

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http://dx.doi.org/10.1016/j.jcpa.2018.09.009DOI Listing
November 2018
1 Read

Molecular features and clinical outcomes in surgically treated low-grade diffuse gliomas in patients over the age of 60.

J Neurooncol 2019 Jan 29;141(2):383-391. Epub 2018 Nov 29.

Department of Neurological Surgery, University of California, San Francisco, CA, USA.

Purpose: WHO grade II gliomas are uncommon in patients over the age of 60, and there is a lack in consensus regarding their management. We present molecular tumor characteristics as well as clinical outcomes in patients over the age of 60 undergoing surgical resection of a WHO grade II glioma.

Methods: After receiving IRB approval, patients were identified through the UCSF Brain Tumor Center. Read More

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http://dx.doi.org/10.1007/s11060-018-03044-4DOI Listing
January 2019
2 Reads

Evidence for Improving Outcome Through Extent of Resection.

Neurosurg Clin N Am 2019 Jan 1;30(1):85-93. Epub 2018 Nov 1.

Department of Neurological Surgery, University of California San Francisco, 505 Parnassus Avenue, M779, San Francisco, CA 94143-0112, USA.

Surgical resection plays a central role in the management of gliomas however many tumors are within areas resulting in sensorimotor and cognitive consequences. This article reviews the evidence in support of extent of resection to improve survival, symptom management, and time to malignant transformation in low-grade gliomas. The authors summarize the evolving literature regarding the role of maximal safe resection in light of WHO subclassification of low-grade gliomas. Read More

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http://dx.doi.org/10.1016/j.nec.2018.08.005DOI Listing
January 2019
22 Reads

Alterations in the Brain Microenvironment in Diffusely Infiltrating Low-Grade Glioma.

Neurosurg Clin N Am 2019 Jan 1;30(1):27-34. Epub 2018 Nov 1.

Department of Pathology and Cell Biology, Columbia University, Columbia University Medical Center, Irving Cancer Research Center, Room 1002, 1130 St Nicholas Avenue, New York, NY 10032, USA. Electronic address:

Glioma cells diffusely infiltrate the surrounding brain tissue where they intermingle with nonneoplastic brain cells, including astrocytes, microglia, oligodendrocytes and neurons. The infiltrative margins of glioma represent the structural and functional interface between neoplastic and nonneoplastic brain tissue that underlies neurologic alterations associated with glioma, including epilepsy and neurologic deficits. Technological advancements in molecular analysis, including single cell sequencing, now allow us to assess alterations in specific cell types in the brain tumor microenvironment, which can enhance the development of novel therapies that target glioma growth and glioma-induced neurologic symptoms. Read More

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http://dx.doi.org/10.1016/j.nec.2018.08.001DOI Listing
January 2019

Molecular Pathogenesis of Low-Grade Glioma.

Neurosurg Clin N Am 2019 Jan;30(1):17-25

Department of Neurosurgery, Kimmel Center for Stem Cell Biology, Laura and Isaac Perlmutter Cancer Center, Neuroscience Institute, Brain Tumor Center, NYU School of Medicine, 530 First Avenue, Skirball 8R, New York, NY 10016, USA. Electronic address:

Advances in genome sequencing have elucidated the genetics of low-grade glioma. Available evidence indicates a neomorphic mutation in isocitrate dehydrogenase (IDH) initiates gliomagenesis. Mutant IDH produces the oncometabolite 2-hydroxyglutarate, which inhibits enzymes that demethylate genomic DNA and histones. Read More

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https://linkinghub.elsevier.com/retrieve/pii/S10423680183091
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http://dx.doi.org/10.1016/j.nec.2018.08.011DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6260953PMC
January 2019
12 Reads

Epidemiology and Molecular Epidemiology.

Neurosurg Clin N Am 2019 Jan;30(1):1-16

Department of Medicine, Section of Epidemiology and Population Sciences, Dan Duncan Comprehensive Cancer Center, Baylor College of Medicine, One Baylor Plaza, Houston, TX 77030-3498, USA. Electronic address:

Incidence, prevalence, and survival for diffuse low-grade gliomas and diffuse anaplastic gliomas (including grade II and grade III astrocytomas and oligodendrogliomas) varies by histologic type, age at diagnosis, sex, and race/ethnicity. Significant progress has been made in identifying potential risk factors for glioma, although more research is warranted. The strongest risk factors that have been identified thus far include allergies/atopic disease, ionizing radiation, and heritable genetic factors. Read More

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http://dx.doi.org/10.1016/j.nec.2018.08.010DOI Listing
January 2019
1 Read

Surgical management of lower-grade glioma in the spotlight of the 2016 WHO classification system.

J Neurooncol 2019 Jan 22;141(1):223-233. Epub 2018 Nov 22.

Department of Neurosurgery, Medical Center, Freiburg, Germany.

Purpose: According to the 2016 WHO classification lower-grade gliomas consist of three groups: IDH-mutated and 1p/19q co-deleted, IDH-mutated and IDH-wildtype tumors. The aim of this study was to evaluate the impact of surgical therapy for lower-grade gliomas with a particular focus on the molecular subgroups.

Methods: This is a bi-centric retrospective analysis including 299 patients, who underwent treatment for lower-grade glioma between 1990 and 2016. Read More

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http://dx.doi.org/10.1007/s11060-018-03030-wDOI Listing
January 2019
8 Reads

MRI based texture analysis to classify low grade gliomas into astrocytoma and 1p/19q codeleted oligodendroglioma.

Magn Reson Imaging 2019 Apr 19;57:254-258. Epub 2018 Nov 19.

Department of Radiology, Weill Cornell Medicine, New York, NY, USA. Electronic address:

Purpose: Texture analysis performed on MR images can detect quantitative features that are imperceptible to human visual assessment. The purpose of this study was to evaluate the feasibility of texture analysis on preoperative conventional MRI to discriminate between histological subtypes in low-grade gliomas (LGGs), and to determine the utility of texture analysis compared to histogram analysis alone.

Methods: A total of 41 patients with LGG, 21 astrocytoma and 20 1p/19q codeleted oligodendroglioma were included in this study. Read More

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http://dx.doi.org/10.1016/j.mri.2018.11.008DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6347382PMC
April 2019
7 Reads

Tumour volume reduction following PET guided intensity modulated radiation therapy and temozolomide in IDH mutated anaplastic glioma.

J Clin Neurosci 2019 Jan 14;59:68-74. Epub 2018 Nov 14.

Northern Sydney Cancer Centre, Royal North Shore Hospital, Sydney, Australia; Sydney Medical School, University of Sydney, Sydney, Australia; Sydney NeuroOncology Group, Sydney, Australia.

The role of maximal surgical debulking in isocitrate dehydrogenase (IDH) mutated anaplastic glioma prior to adjuvant radiation therapy remains uncertain. This study assessed the reduction in tumour volume following intensity modulated radiation therapy (IMRT) and temozolomide in this favourable and more responsive tumour pathology. 56 patients were managed from 2011 to 2014 and 53 had residual disease. Read More

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http://dx.doi.org/10.1016/j.jocn.2018.11.005DOI Listing
January 2019
3 Reads

The Dilemma of Cure and Damage in Oligodendroglioma: Ways to Tip the Balance Away from the Damage.

Authors:
Ruurd Torensma

Cancers (Basel) 2018 Nov 12;10(11). Epub 2018 Nov 12.

Department of Tumorimmunology, Radboud Institute for Molecular Life Sciences, RadboudUMC, Geert Grooteplein 28, 6525GA Nijmegen, The Netherlands.

Current treatments for oligodendrogliomas are powerful but have a negative impact on the rest of the body. The bone marrow is damaged by the chemotherapeutics, but other parts of the body are also affected. In this paper, the current treatment method and its collateral damage is described. Read More

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http://www.mdpi.com/2072-6694/10/11/431
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http://dx.doi.org/10.3390/cancers10110431DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6265865PMC
November 2018
6 Reads

Multi-faceted computational assessment of risk and progression in oligodendroglioma implicates NOTCH and PI3K pathways.

NPJ Precis Oncol 2018 6;2:24. Epub 2018 Nov 6.

14Department of Pathology, Northwestern University Feinberg School of Medicine, Chicago, IL USA.

Oligodendrogliomas are diffusely infiltrative gliomas defined by -mutation and co-deletion of 1p/19q. They have highly variable clinical courses, with survivals ranging from 6 months to over 20 years, but little is known regarding the pathways involved with their progression or optimal markers for stratifying risk. We utilized machine-learning approaches with genomic data from The Cancer Genome Atlas to objectively identify molecular factors associated with clinical outcomes of oligodendroglioma and extended these findings to study signaling pathways implicated in oncogenesis and clinical endpoints associated with glioma progression. Read More

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http://dx.doi.org/10.1038/s41698-018-0067-9DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6219505PMC
November 2018
1 Read

[Intraoperative mapping of long association fibers in surgery of gliomas of the speech-dominant frontal lobe].

Zh Vopr Neirokhir Im N N Burdenko 2018 ;82(5):5-20

Burdenko Neurosurgical Institute, Moscow, Russia.

Surgery of intracerebral tumors involving long association fibers is a challenge. In this study, we analyze the results of intraoperative mapping of the superior longitudinal, arcuate, and frontal aslant tracts in surgery of brain gliomas.

Purpose: The study purpose was to compare the results of intraoperative mapping and the postoperative speech function in patients with gliomas of the premotor area of the speech-dominant frontal lobe, which involved the superior longitudinal, arcuate, and frontal aslant tracts, who were operated on using awake craniotomy. Read More

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http://dx.doi.org/10.17116/neiro2018820515DOI Listing
January 2018
12 Reads

High levels of glioma tumor suppressor candidate region gene 1 predicts a poor prognosis for prostate cancer.

Oncol Lett 2018 Nov 24;16(5):6749-6755. Epub 2018 Sep 24.

Department of Urology, Sun Yat-Sen Memorial Hospital, Sun Yat-Sen University, Guangzhou, Guangdong 510120, P.R. China.

Glioma tumor suppressor candidate region gene 1 (GLTSCR1) is associated with the progression of oligodendroglioma. However, there has been little study of GLTSCR1 in prostate cancer. In the present study, the association between the expression of GLTSCR1, and the progression and prognosis of tumors in patients with prostate cancer was assessed. Read More

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http://www.spandidos-publications.com/10.3892/ol.2018.9490
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http://dx.doi.org/10.3892/ol.2018.9490DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6202511PMC
November 2018
11 Reads
0.987 Impact Factor

Increased HSPG2 expression independently predicts poor survival in patients with oligoastrocytoma and oligodendroglioma.

Eur Rev Med Pharmacol Sci 2018 Oct;22(20):6853-6863

Department of Neurosurgery, Yuquan Hospital, Tsinghua University, Beijing, China.

Objective: Perlecan, which is also called heparan sulfate proteoglycan 2 (HSPG2), is a protein encoded by the HSPG2 gene that maps to 1p36.12 in the human genome. In this study, we assessed the independent prognostic value of HSPG2 in terms of overall survival (OS) and recurrence-free survival (RFS) in patients with LGG. Read More

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http://dx.doi.org/10.26355/eurrev_201810_16154DOI Listing
October 2018
5 Reads

Intratumoral temozolomide in spontaneous canine gliomas: feasibility of a novel therapy using implanted microcylinders.

Vet Med Sci 2019 Feb 5;5(1):5-18. Epub 2018 Nov 5.

Microspherix LLC, Bocan Raton, FL, USA.

Entotherapy an image-guided drug-eluting microcylinder platform, has the potential to bypass the limitations of systemic chemotherapy use in the treatment of canine brain tumours. Gliomas, which are common in dogs and also represent the majority of fatal brain tumours in humans, can be amenable to chemotherapy with temozolomide. Biopolymer microcylinders conjugated with temozolomide and gadolinium were implanted into partially resected tumours of four client-owned dogs with gliomas. Read More

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http://dx.doi.org/10.1002/vms3.124DOI Listing
February 2019
2 Reads

Cell division cycle associated 7 like predicts unfavorable prognosis and promotes invasion in glioma.

Pathol Res Pract 2019 Jan 24;215(1):50-56. Epub 2018 Oct 24.

Department of Neurosurgery, The First Affiliated Hospital of Xinxiang Medical University, No. 88 Weihui Health Road, Xinxiang 453000, Henan Province, People's Republic of China. Electronic address:

Background: Cell division cycle associated 7 like (CDCA7L) belongs to the JPO protein family, which is recently identified as a target gene of c-Myc and is frequently dysregulated in multiple cancers. This study aimed to explore the clinicpathological value and biological role of CDCA7L in glioma.

Methods: CDCA7L expression in glioma patients was determined using the Oncomine database, and the prognostic role of CDCA7L expression was assessed in a retrospective cohort study. Read More

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http://dx.doi.org/10.1016/j.prp.2018.10.023DOI Listing
January 2019
2 Reads

The effects of tumor size and postoperative radiotherapy for patients with adult low-grade (WHO grade II) infiltrative supratentorial astrocytoma/oligodendroglioma: A population-based and propensity score matched study.

Cancer Med 2018 Dec 30;7(12):5973-5987. Epub 2018 Oct 30.

Department of Neurosurgery, The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, Wenzhou, China.

Background: The update of 2018 NCCN guidelines (central nervous system cancers) recommended the risk classification of postoperative patients diagnosed as adult low-grade (WHO grade II) infiltrative supratentorial astrocytoma/oligodendroglioma (ALISA/O) should take tumor size into consideration. Moreover, the guidelines removed postoperative radiotherapy (PORT) for low risk patients. Our study aimed to explore the specific tumor size to divide postoperative patients into relatively low- or high risk subgroups and the effect of PORT for ALISA/O patients. Read More

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http://doi.wiley.com/10.1002/cam4.1853
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http://dx.doi.org/10.1002/cam4.1853DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6308075PMC
December 2018
7 Reads

Assessment of the impact of glioma diagnostic reclassification following the new 2016 WHO classification on a series of cases.

Neurocirugia (Astur) 2019 Jan - Feb;30(1):19-27. Epub 2018 Oct 23.

Servicio de Neurocirugía, Hospital General Universitario Gregorio Marañón, Madrid, España.

Background And Objectives: The aim of this project is to assess diagnostic reclassification based on molecular data over morphology in a series of glial tumours since the introduction of the 2016 WHO classification of brain tumours.

Materials And Methods: Retrospective review of glial tumours (oligodendrogliomas and astrocytomas) treated in our centre between January 2012 and June 2016 in which a review of diagnosis was performed when molecular studies were added. Statistical analysis included evaluation of variables of epidemiology, morphology and molecular data (mainly IDH mutation and 1p19q codeletion), diagnostic changes after new classification was considered, and clinical impact in cases of diagnostic reclassification. Read More

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https://linkinghub.elsevier.com/retrieve/pii/S11301473183009
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http://dx.doi.org/10.1016/j.neucir.2018.09.002DOI Listing
October 2018
15 Reads

Anaplastic Glioma: Treatment Approaches in the Era of Molecular Diagnostics.

Curr Treat Options Oncol 2018 Oct 25;19(12):61. Epub 2018 Oct 25.

Division of Neuro-Oncology Mayo Clinic, Rochester, MN, USA.

Opinion Statement: The treatment paradigm for anaplastic glioma has shifted, owing to new diagnostic criteria and new phase III clinical trial evidence. In 2016, the WHO classification of brain tumors including diffuse gliomas was redefined to include molecular criteria, often supplanting the morphological appearance of the tumor cells. This was necessary as prognosis is more closely associated with molecular diagnosis than with morphology and grade. Read More

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http://link.springer.com/10.1007/s11864-018-0579-0
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http://dx.doi.org/10.1007/s11864-018-0579-0DOI Listing
October 2018
20 Reads

Malignant Transformation of Mature Cystic Teratoma: Is Squamous Cell Carcinoma Different From the Other Types of Neoplasm?

Int J Gynecol Cancer 2018 Nov;28(9):1650-1656

Department of Obstetrics and Gynecology, Japanese Red Cross Fukuoka Hospital, Fukuoka, Japan.

Objectives: Malignant transformation of mature cystic teratoma (MCT) is rare. Unlike squamous cell carcinoma (SCC) in MCT, the other types of neoplasm in MCT have not been discussed in publications. We analyzed the clinical characteristics and prognosis of the other types of neoplasm (non-SCC) compared with those of SCC. Read More

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http://dx.doi.org/10.1097/IGC.0000000000001375DOI Listing
November 2018
10 Reads

Diverse Biological Functions of Sphingolipids in the CNS: Ceramide and Sphingosine Regulate Myelination in Developing Brain but Stimulate Demyelination during Pathogenesis of Multiple Sclerosis.

J Neurol Psychol 2017 Dec 23;5(1). Epub 2017 Dec 23.

Department of Pathology, Microbiology, and Immunology, University of South Carolina School of Medicine, USA.

Sphingolipids are enriched in the Central Nervous System (CNS) and display multiple biological functions. They participate in tissue development, cell recognition and adhesion, and act as receptors for toxins. During myelination, a variety of interactive molecules such as myelin basic protein, myelin associated glycoprotein, phospholipids, cholesterol, sphingolipids, etc. Read More

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http://dx.doi.org/10.13188/2332-3469.1000035DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6190913PMC
December 2017
1 Read

Prognostic significance of genetic biomarkers in isocitrate dehydrogenase-wild-type lower-grade glioma: the need to further stratify this tumor entity - a meta-analysis.

Eur J Neurol 2019 Mar 13;26(3):379-387. Epub 2018 Nov 13.

Department of Pathology, University of Yamanashi, Yamanashi, Japan.

The clinical outcomes of isocitrate dehydrogenase-wild-type (IDH-wt) lower-grade glioma (LGG) have been the subject of debate for some time. In this meta-analysis, we aimed to assess the prognostic values of several known genetic markers (e.g. Read More

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http://doi.wiley.com/10.1111/ene.13826
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http://dx.doi.org/10.1111/ene.13826DOI Listing
March 2019
3 Reads

Navigated Transcranial Magnetic Stimulation in Patient with Cranioplasty in Situ: Safe and Accurate Procedure.

World Neurosurg 2019 Feb 6;122:176-179. Epub 2018 Oct 6.

Department of Neurosurgery, King's College Hospital, London, United Kingdom.

Background: Navigated transcranial magnetic stimulation (nTMS) is a nonsurgical mapping technique used in mapping of motor and language eloquent areas within and/or surrounding brain tumors. Previous reports support this as a safe technique with minor side effects associated with minor headaches and discomfort around the stimulation area. Currently there are no published reports concerning the accuracy and safety of this procedure in patients with a titanium cranioplasty in situ. Read More

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https://linkinghub.elsevier.com/retrieve/pii/S18788750183225
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http://dx.doi.org/10.1016/j.wneu.2018.09.198DOI Listing
February 2019
13 Reads

Diffuse low grade glioma after the 2016 WHO update, seizure characteristics, imaging correlates and outcomes.

Clin Neurol Neurosurg 2018 Dec 2;175:9-15. Epub 2018 Oct 2.

Department of Neurosurgery, University Hospital of Wales, Heath Park, Cardiff, CF14 4XW, UK.

Objectives: The majority of patients with supratentorial diffuse grade II glioma present with seizures, which adversely affect quality of life. The exact mechanism of epileptogenesis is unknown and the influence of tumour characteristics, radiological and histological, are not well studied, particularly following the introduction of molecular genetics in the 2016 WHO reclassification of gliomas. We sought to define predictors of seizure development and outcome in low grade glioma. Read More

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http://dx.doi.org/10.1016/j.clineuro.2018.10.001DOI Listing
December 2018
9 Reads

Radiotherapy plus temozolomide or PCV in patients with anaplastic oligodendroglioma 1p19q codeleted.

Rev Neurol 2018 Oct;67(8):293-297

Instituto Nacional de Neurologia y Neurocirugia Manuel Velasco Suarez, Mexico DF, Mexico.

Introduction: Radiotherapy with procarbazine, lomustine, and vincristine (PCV) improves overall survival in patients with anaplastic oligodendroglioma 1p19q codeleted.

Patients And Methods: This retrospective analysis investigated outcomes in patients with anaplastic oligodendroglioma 1p19q codeleted compared two different protocols (radiotherapy plus temozolomide or PCV). The primary end points were overall survival and progression-free survival. Read More

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October 2018
2 Reads

Patterns of care and outcomes of postoperative radiation for low-grade gliomas in United States hospitals.

J Clin Neurosci 2018 Dec 2;58:124-129. Epub 2018 Oct 2.

Department of Radiation Oncology, SUNY Downstate Medical Center, Brooklyn, NY, USA; Department of Veterans Affairs, New York Harbor Healthcare System, Brooklyn, NY, USA; Summit Medical Group at MD Anderson Cancer Center, Berkeley Heights, NJ, USA.

It is unclear whether there is a survival benefit with postoperative radiation for low-grade gliomas deemed to be high-risk. We sought to analyze patterns of care and outcomes of radiation use. We accessed the National Cancer Database to identify patients with WHO grade II oligodendroglioma or astrocytoma between 2010 and 2012. Read More

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https://linkinghub.elsevier.com/retrieve/pii/S09675868173171
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http://dx.doi.org/10.1016/j.jocn.2018.09.010DOI Listing
December 2018
8 Reads

Multiple Extraneural Metastases of Anaplastic Oligodendroglioma.

Asian J Neurosurg 2018 Jul-Sep;13(3):830-833

Department of Pathology, Faculty of Medicine, Adana Practice and Research Center, Baskent University, Adana, Turkey.

Oligodendrogliomas (ODGs) is a diffuse glial tumor that constitutes 4.2% of all brain tumors. Extraneural metastases, sometimes seen in glioblastoma multiforme, are extremely rare in ODG. Read More

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http://dx.doi.org/10.4103/1793-5482.238010DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6159050PMC
October 2018
12 Reads

Glioblastoma in the setting of prior lower grade gliomas - insights from SEER database.

Oncotarget 2018 Sep 7;9(70):33271-33277. Epub 2018 Sep 7.

National Skull Base Center, Thousand Oaks, CA, USA.

Introduction: Secondary glioblastomas (GBs) constitute a small subset of all GBs and tend to arise after a lower grade glioma. Though knowledge regarding this subset has gained traction in recent years, its definition continues to evolve, complicating its clinical management. Investigation of epidemiology and survival patterns may help provide needed insights. Read More

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http://www.oncotarget.com/fulltext/26014
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http://dx.doi.org/10.18632/oncotarget.26014DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6161794PMC
September 2018
14 Reads

Microvascular characteristics of lower-grade diffuse gliomas: investigating vessel size imaging for differentiating grades and subtypes.

Eur Radiol 2018 Oct 1. Epub 2018 Oct 1.

Department of Radiology, Institute of Surgery Research, Daping Hospital, Army Medical University, 10# Changjiang Branch Road, Chongqing, People's Republic of China, 400024.

Objectives: Vessel size imaging (VSI) could reveal average microvessel diameter. The aim was to investigate microvascular characteristics and the efficacy of VSI in lower-grade glioma (LGG) grading and subtype differentiation based on 2016 classification of central nervous system tumours.

Methods: Fifty-seven LGG (grade II/III, 36/21) patients who received VSI examination before surgery were retrospectively analysed. Read More

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http://dx.doi.org/10.1007/s00330-018-5738-yDOI Listing
October 2018
3 Reads

Comparison of Radiation Therapy Alone and Chemotherapy Alone for Low-Grade Gliomas without Surgical Resection.

World Neurosurg 2019 Feb 24;122:e108-e120. Epub 2018 Sep 24.

Department of Neurology, The Second Xiangya Hospital, Central South University, Changsha, Hunan, China. Electronic address:

Background: The combined use of chemotherapy (CT) and radiotherapy (RT) is becoming increasingly common in the treatment of surgically resected low-grade gliomas. However, whether RT or CT is associated with improved overall survival (OS) for low-grade gliomas without surgical resection is less clear.

Methods: The U. Read More

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http://dx.doi.org/10.1016/j.wneu.2018.09.109DOI Listing
February 2019
3 Reads
2.420 Impact Factor