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Spinal cord astrocytoma

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https://www.readbyqxmd.com/read/28173580/multifocal-intradural-extramedullary-pilocytic-astrocytomas-of-the-spinal-cord-a-case-report-and-review-of-the-literature
#1
Azam Basheer, Richard Rammo, Steven Kalkanis, Michelle M Felicella, Mokbel Chedid
No abstract text is available yet for this article.
February 1, 2017: Neurosurgery
https://www.readbyqxmd.com/read/28156189/feline-glioma-a-retrospective-study-and-review-of-the-literature
#2
Daniel R Rissi, Andrew D Miller
Case series summary This study aimed to evaluate the pathologic and diagnostic features of 13 cases of feline glioma diagnosed at two veterinary diagnostic institutions over 16 years. A retrospective search was conducted using the laboratory information system. Selected cases were reviewed, tumors were classified according to the 2007 World Health Organization Classification of Tumours of the Central Nervous System, and tissue sections were submitted to an immunohistochemistry panel for further characterization...
February 1, 2017: Journal of Feline Medicine and Surgery
https://www.readbyqxmd.com/read/28089418/distant-spread-of-a-supratentorial-glioblastoma-to-the-spinal-cord
#3
Krishnan Ravindran, Frank Gaillard, Arian Lasocki
Extracranial spread from a glioblastoma is rare. We present a case of a 48year-old man with a previously radiologically-stable left temporal lobe glioblastoma presenting with symptoms referrable to the spinal cord. MRI revealed a spinal cord lesion, with the differential including transverse myelitis and tumour. Open surgical biopsy revealed high-grade astrocytoma. Genetic analysis of both the supratentorial and spinal tumours revealed R132H IDH1 mutations, providing evidence that the spinal cord lesion had spread from the supratentorial tumour...
January 12, 2017: Journal of Clinical Neuroscience: Official Journal of the Neurosurgical Society of Australasia
https://www.readbyqxmd.com/read/28074710/canine-spinal-cord-glioma
#4
Daniel R Rissi, Renee Barber, Annabelle Burnum, Andrew D Miller
Spinal cord glioma is uncommonly reported in dogs. We describe the clinicopathologic and diagnostic features of 7 cases of canine spinal cord glioma and briefly review the veterinary literature on this topic. The median age at presentation was 7.2 y. Six females and 1 male were affected and 4 dogs were brachycephalic. The clinical course lasted from 3 d to 12 wk, and clinical signs were progressive and associated with multiple suspected neuroanatomic locations in the spinal cord. Magnetic resonance imaging of 6 cases revealed T2-weighted hyperintense lesions with variable contrast enhancement in the spinal cord...
January 2017: Journal of Veterinary Diagnostic Investigation
https://www.readbyqxmd.com/read/27997032/k27m-midline-gliomas-display-malignant-progression-by-imaging-and-histology
#5
Franziska J Vettermann, Julia E Neumann, Bogdana Suchorska, Peter Bartenstein, Armin Giese, Mario M Dorostkar, Nathalie L Albert, Ulrich Schüller
K27M midline gliomas are diffuse gliomas that usually occur in children and young adults and arise in midline structures of the brain, the brain stem and the spinal cord. They are defined by point mutations within the chromatin modifiers H3 and are usually associated with a bad clinical outcome [1,2,3]. As such, they are represented as a new separate entity in the new version of the WHO classification for tumors of the central nervous system. Interestingly, these tumors display a huge histological variability [4] and diagnoses currently range from low grade astrocytoma (WHO-grade II) to glioblastoma (WHO-grade IV)...
December 20, 2016: Neuropathology and Applied Neurobiology
https://www.readbyqxmd.com/read/27920686/single-agent-carboplatin-for-a-rare-case-of-pilomyxoid-astrocytoma-of-the-spinal-cord-in-an-adult-with-neurofibromatosis-type-1
#6
Anastasie M Dunn-Pirio, Elizabeth Howell, Roger E McLendon, Katherine B Peters
INTRODUCTION: Pilomyxoid astrocytoma (PMA) is a rare and more aggressive variant of pilocytic astrocytoma, which usually affects young children and is most often located in the hypothalamic/chiasmatic region. The association of PMA with underlying genetic disorders is not well known. METHODS: We identified a 23-year-old woman with a PMA of the spinal cord who was simultaneously diagnosed with neurofibromatosis type 1. Diagnosis of neurofibromatosis type 1 was made clinically and confirmed with genetic testing that revealed a heterozygous one-amino-acid deletion (c...
September 2016: Case Reports in Oncology
https://www.readbyqxmd.com/read/27915062/rosette-forming-glioneuronal-tumor-originating-from-the-spinal-cord-report-of-2-cases-and-literature-review
#7
Lian Duan, Yunkun Zhang, Weilun Fu, Sumin Geng
Rosette-forming glioneuronal tumor (RGNT) is a recently recognized and rarely encountered tumor occurring in the fourth ventricle. RGNT was first described as a new entity for the distinct clinicopathologic features by Komori et.al. in 2002. Histologically, it is composed of 2 distinct features: a glial component, resembling pilocytic astrocytoma, and a neurocytic component forming neurocytic rosettes and/or perivascular rosettes. We report 2 extremely rare cases of RGNT arising from the spinal cord, which were misdiagnosed as ependymoma and astrocytoma preoperatively...
November 30, 2016: World Neurosurgery
https://www.readbyqxmd.com/read/27834627/promotion-of-astrocytoma-cell-invasion-by-micro-rna-22-targeting-of-tissue-inhibitor-of-matrix-metalloproteinase-2
#8
Yu-Ichiro Ohnishi, Koichi Iwatsuki, Masahiro Ishihara, Toshika Ohkawa, Manabu Kinoshita, Koei Shinzawa, Yasunori Fujimoto, Toshiki Yoshimine
OBJECTIVE Diffuse astrocytomas (DAs) have a high recurrence rate due to diffuse infiltration into the brain and spinal cord. Micro RNAs (miRNAs) are small noncoding RNAs that regulate gene expression by binding to complementary sequences of target messenger RNA (mRNA). It has been reported that miRNA-22 (miR-22) is involved in the invasion of some cancer cell lines. The aim of this study was to identify the biological effects of miR-22 in regard to the invasion of human DAs. METHODS The authors evaluated whether the level of miR-22 is elevated in human spinal DAs by using miRNA chips...
November 11, 2016: Journal of Neurosurgery. Spine
https://www.readbyqxmd.com/read/27659826/supratentorial-tumors-typical-of-the-infantile-age-desmoplastic-infantile-ganglioglioma-dig-and-astrocytoma-dia-a-review
#9
REVIEW
F Bianchi, G Tamburrini, L Massimi, M Caldarelli
OBJECT: Desmoplastic infantile gangliogliomas (DIGs) and desmoplastic infantile astrocytomas (DIAs) are tumors typical of the infantile age. A large size, with a mixed solid and cystic component, clinical presentation with progressing signs of increased intracranial pressure, a prominent benign desmoplastic structure at histological examination, and a favorable clinical course in the majority of cases are the prominent features of these tumors. The objective of the present paper was to review the pertinent literature on the topic together with our personal experience, with the aim of an updated review of the subject...
October 2016: Child's Nervous System: ChNS: Official Journal of the International Society for Pediatric Neurosurgery
https://www.readbyqxmd.com/read/27616318/neoplastic-and-paraneoplastic-involvement-of-the-spinal-cord
#10
John Michael Hazenfield, Mary F Gaskill-Shipley
Neoplasia of the spinal cord, including both primary and metastatic tumors, is relatively rare, representing 4%-10% of all central nervous system tumors, and can present a diagnostic challenge to the radiologist. More than 90% of primary spinal cord neoplasms are derived from the glial cell lineage, including the 2 most common tumors ependymoma and astrocytoma. However, less common spinal cord tumors, including metastatic disease, as well as nonneoplastic and paraneoplastic processes should be considered in the diagnosis of intramedullary spinal cord lesions...
October 2016: Seminars in Ultrasound, CT, and MR
https://www.readbyqxmd.com/read/27615152/development-of-a-lateralization-index-for-intramedullary-astrocytomas-and-ependymomas
#11
A Herbrecht, M Messerer, F Parker
INTRODUCTION: Intramedullary ependymomas are classically described as tumors developing in the center of the spinal cord, whereas intramedullary astrocytomas are more dispersed. This description only remains approximate. The aim of this study was to establish a lateralization index (LI), which is based on radiological measurements and may help in differentiating the two tumors. MATERIAL AND METHODS: Retrospective analysis based on the analysis of MRI of patients operated on for intramedullary astrocytoma or ependymoma in the Neurosurgical Department of Bicêtre Hospital...
September 9, 2016: Neuro-Chirurgie
https://www.readbyqxmd.com/read/27559457/clinical-factors-for-prognosis-and-treatment-guidance-of-spinal-cord-astrocytoma
#12
Toshitaka Seki, Kazutoshi Hida, Shunsuke Yano, Takeshi Aoyama, Izumi Koyanagi, Toru Sasamori, Shuji Hamauch, Kiyohiro Houkin
STUDY DESIGN: Retrospective study. PURPOSE: To obtain information useful in establishing treatment guidelines by evaluating baseline clinical features and treatment outcomes of patients with spinal cord astrocytoma (SCA). OVERVIEW OF LITERATURE: The optimal management of SCA remains controversial, and there are no standard guidelines. METHODS: The study included 20 patients with low-grade and 13 with high-grade SCA surgically treated between 1989 and 2014...
August 2016: Asian Spine Journal
https://www.readbyqxmd.com/read/27475420/factors-affecting-functional-outcome-in-patients-with-intramedullary-spinal-cord-tumors-results-from-a-literature-analysis
#13
Nicola Montano, Fabio Papacci, Gianluca Trevisi, Eduardo Fernandez
Recently, great advances have been made in the surgical treatment of intramedullary spinal cord tumors (IMSCTs). Many articles have been published; but looking at the literature of the last 5 years, there are only descriptive reviews and no works in which a literature statistical analysis was performed. Here, we analyzed the literature to identify potential prognosticators of good functional outcome in IMSCT patients. To level out the selected studies, we stratified patients' neurological status as independent (ambulation possible without caregiver assistance) or disabled (cannot ambulate or can only ambulate with caregiver assistance)...
July 30, 2016: Acta Neurologica Belgica
https://www.readbyqxmd.com/read/27417401/neuroimaging-of-spinal-tumors
#14
REVIEW
Zulejha Merhemic, Tatjana Stosic-Opincal, Majda M Thurnher
Intradural tumors are relatively rare neoplasms; however, when unrecognized in a timely manner, they can result in serious deficits and disability. These tumors lack obvious clinical symptoms until compression of the cord or neurologic deficits occur. The most common intramedullary lesions are ependymomas, astrocytomas, and hemangioblastomas. Meningiomas and nerve sheath tumors (schwannomas and neurofibromas) comprise most intradural-extramedullary tumors. Less common tumors are hemangiopericytoma, paraganglioma, melanocytoma, melanoma, metastases, and lymphoma...
August 2016: Magnetic Resonance Imaging Clinics of North America
https://www.readbyqxmd.com/read/27228211/further-understanding-of-the-pathology-of-glioma-implications-for-the-clinic
#15
Sandra Camelo-Piragua, Santosh Kesari
INTRODUCTION: Glioma classification and grading has been historically based in morphologic appearance of tumor cells: astrocytomas, oligodendrogliomas, oligoastrocytomas and ependymomas. Recent molecular advances have transformed the field of neuro-oncology, as some molecular markers harbor diagnostic, prognostic and therapeutic implications. AREAS COVERED: In this paper we will review the major molecular changes associated with gliomas and their implications in diagnosis, prognosis, and opportunities in therapeutics...
September 2016: Expert Review of Neurotherapeutics
https://www.readbyqxmd.com/read/27151267/the-effects-of-thermal-preconditioning-on-oncogenic-and-intraspinal-cord-growth-features-of-human-glioma-cells
#16
Xiang Zeng, Inbo Han, Muhammad Abd-El-Barr, Zaid Aljuboori, Jamie E Anderson, John H Chi, Ross D Zafonte, Yang D Teng
The adult rodent spinal cord presents an inhibitory environment for donor cell survival, impeding efficiency for xenograft-based modeling of gliomas. We postulated that mild thermal preconditioning may influence the fate of the implanted tumor cells. To test this hypothesis, high-grade human astrocytoma G55 and U87 cells were cultured under 37C and 38.5C to mimic regular experimental or core body temperatures of rodents, respectively. In vitro, the 38.5C-conditioned cells, relative to 37C, grew slightly faster...
December 13, 2016: Cell Transplantation
https://www.readbyqxmd.com/read/27142914/-glioneuronal-tumor-with-neuropil-like-island-report-of-four-cases-and-review-of-literature
#17
REVIEW
Z J Duan, K Yao, X L Qi
OBJECTIVE: To investigate the clinicopathologic features of glioneuronal tumor with neuropil-like island (GTNI). METHODS: Four cases of intracranial and spinal GTNI, including three cases of WHO grade Ⅲ, and one case of WHO grade Ⅱ with grade Ⅲ recurrence. HE and immunohistochemical (IHC) staining were used for pathologic analysis. Fluorescence in situ hybridization (FISH) was used to detect tumor genetic changes. Related literatures were reviewed. RESULTS: Microscopically, neuropil-like islands of varying sizes were seen within a background of glial proliferation, which showed features of astrocytoma or oligoastrocytoma...
May 8, 2016: Zhonghua Bing Li Xue za Zhi Chinese Journal of Pathology
https://www.readbyqxmd.com/read/27106533/pilomyxoid-astrocytoma-involving-the-entire-spinal-cord-in-a-newborn
#18
J Alcalde López, J J Sánchez Garduño
No abstract text is available yet for this article.
September 2016: Radiología
https://www.readbyqxmd.com/read/27092919/primary-spinal-oligoastrocytoma
#19
Hongyan Zhao, Mei'e Yuan, Li Yang, Jianyi Niu, Xunhui Yuan, Yun'an Bai, Liemei Guo
Astrocytomas are the most common intramedullary spinal cord tumors in pediatric and adolescent patients and the incidence decreases with age. Spinal oligoastrocytoma, which is a mixed glioma with distinct astrocytic and oligodendroglial components, is an extremely rare pathology of the spinal cord. To authors' best of knowledge, there are only 7 spinal oligoastrocytomas reported in the English literature. Here, the authors report a patient of a pathologically confirmed spinal oligoastrocytoma, who presented with severe left leg pain and numbness...
May 2016: Journal of Craniofacial Surgery
https://www.readbyqxmd.com/read/27081238/multiple-hypertrophic-relapsing-remitting-cranial-neuropathies-as-an-initial-presentation-of-primary-cns-lymphoma-without-any-brain-or-spinal-cord-lesion
#20
Gaurav V Watane, Saumil P Pandya, Isha D Atre, Foram N Kothari
Cranial nerve thickening as an initial isolated presentation of CNS lymphoma is rare. Once an extremely rare neoplasm, primary lymphoma of the central nervous system (CNS) now ranks only next to meningiomas and low-grade astrocytomas in prevalence. Multiple cranial nerve thickening can be a feature of primary CNS lymphoma. Here we report a case of a 45-year-old immunocompetent female who presented with relapsing remitting multiple cranial nerve thickening as an initial feature of primary CNS lymphoma without any other brain or spinal cord lesions...
January 2016: Indian Journal of Radiology & Imaging
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