keyword
MENU ▼
Read by QxMD icon Read
search

astrocytoma review

keyword
https://www.readbyqxmd.com/read/29676695/huge-heterogeneity-in-survival-in-a-subset-of-adult-patients-with-resected-wild-type-isocitrate-dehydrogenase-status-who-grade-ii-astrocytomas
#1
Gaëtan Poulen, Catherine Gozé, Valérie Rigau, Hugues Duffau
OBJECTIVE World Health Organization grade II gliomas are infiltrating tumors that inexorably progress to a higher grade of malignancy. However, the time to malignant transformation is quite unpredictable at the individual patient level. A wild-type isocitrate dehydrogenase (IDH-wt) molecular profile has been reported as a poor prognostic factor, with more rapid progression and a shorter survival compared with IDH-mutant tumors. Here, the oncological outcomes of a series of adult patients with IDH-wt, diffuse, WHO grade II astrocytomas (AII) who underwent resection without early adjuvant therapy were investigated...
April 20, 2018: Journal of Neurosurgery
https://www.readbyqxmd.com/read/29624145/surgical-decision-making-in-the-management-of-childhood-tumors-of-the-cns-disseminated-at-presentation
#2
Matthew A Kirkman, Richard Hayward, Kim Phipps, Kristian Aquilina
OBJECTIVE It is relatively unusual for pediatric CNS tumors to be disseminated at presentation, and the literature on the clinical features, management, and outcomes of this specific group is scarce. Surgical management in this population is often challenging, particularly in the presence of hydrocephalus. The authors present their recent experience of treating pediatric CNS tumors that were disseminated at presentation, and they compare these lesions with focal tumors. METHODS The authors performed a retrospective review of prospectively collected data on children presenting to a tertiary center between 2003 and 2016 inclusive...
April 6, 2018: Journal of Neurosurgery. Pediatrics
https://www.readbyqxmd.com/read/29617945/intracranial-neoplasms-in-the-first-year-of-life-results-of-a-third-cohort-of-patients-from-a-single-institution
#3
Sebastian M Toescu, Gregory James, Kim Phipps, Owase Jeelani, Dominic Thompson, Richard Hayward, Kristian Aquilina
BACKGROUND: Brain tumors in the first year of life are rare and their management remains challenging. OBJECTIVE: To report on the contemporary management of brain tumors in infants with reference to previous series from our institution. METHODS: Retrospective cohort study design. Electronic/paper case note review of all brain tumors diagnosed at our institution in children aged <1 yr since the publication of our previous series. RESULTS: Ninety-eight patients were seen...
April 3, 2018: Neurosurgery
https://www.readbyqxmd.com/read/29616908/glioblastoma-multiforme-in-a-patient-with-multiple-myeloma-a-case-report-and-literature-review
#4
Christine A Moore, Moayed Ibrahim, Aaysha Kapila, Kailash Bajaj
INTRODUCTION: Lenalidomide is an immunomodulatory drug approved by the US Food and Drug Administration in 2006 for the treatment of multiple myeloma. In 2012, the Food and Drug Administration issued a statement warning physicians of the increased risk with lenalidomide treatment of the following secondary primary malignancies: Acute myelogenous leukemia, myelodysplastic syndromes, and Hodgkin lymphoma. The statement did not mention glioblastoma multiforme, a Grade 4 astrocytoma, or other high-grade astrocytomas that have been reported on rare occasions in the setting of multiple myeloma...
March 30, 2018: Permanente Journal
https://www.readbyqxmd.com/read/29609087/the-tonsillouvular-fissure-approach-access-to-dorsal-and-lateral-aspects-of-the-fourth-ventricle
#5
Ilhan Aydin, Sahin Hanalioglu, Halil Olgun Peker, Yahya Turan, Hakan Kina, Ulas Cikla, Mustafa K Baskaya
OBJECTIVE: Although approaches to the fourth ventricle (FV) have been studied well, approaches to the lesions located in the dorsal and lateral aspects of the FV have not been demonstrated in anatomical or clinical studies. The aim of present study is to demonstrate the tonsillouvular fissure approach (TUFA) in anatomical dissections and its utilization in surgical series for the first time in the literature. METHODS: For anatomical studies, four formalin-fixed human cadaveric heads infused with colored silicone and ten cerebellar specimens were dissected in a stepwise manner...
March 30, 2018: World Neurosurgery
https://www.readbyqxmd.com/read/29607437/diagnosing-between-papillary-carcinoma-and-reactive-papillary-changes-in-an-infarcted-thyroid-nodule-after-fine-needle-aspiration-and-accompanied-by-a-synchronous-brain-stem-astrocytoma
#6
Ceren Canbey Goret, Nuri Emrah Goret, Omer Faruk Ozkan, Muammer Karaayvaz
A 22-year-old patient underwent fine needle aspiration of a nodule at the outer center of the right lobe of the thyroid, and it was reported to be Bethesda system category IV, Hurthle cell follicular neoplasia. The patient, who persented to Onsekiz Mart University Research and Application Hospital, underwent surgery. During right total thyroidectomy, an almost totally infarcted nodule and papillary structures around these infarcted areas were detected. Herein, we report on diagnostic challenges faced in confirming whether the infarcted nodule was a case of reactive papillary changes or an underdiagnosed papillary carcinoma and how the challenges were overcome using immunohistochemistry analysis and molecular genetic testing...
2018: Northern Clinics of Istanbul
https://www.readbyqxmd.com/read/29594248/analysis-of-pseudoprogression-after-proton-or-photon-therapy-of-99-patients-with-low-grade-and-anaplastic-glioma
#7
Julianna K Bronk, Nandita Guha-Thakurta, Pamela K Allen, Anita Mahajan, David R Grosshans, Susan L McGovern
Background and purpose: Proton therapy is increasingly used to treat primary brain tumors. There is concern for higher rates of pseudoprogression (PsP) after protons compared to photons. The purposes of this study are to compare the rate of PsP after proton vs. photon therapy for grade II and III gliomas and to identify factors associated with the development of PsP. Materials and methods: Ninety-nine patients age >18 years with grade II or III glioma treated with photons or protons were retrospectively reviewed...
February 2018: Clinical and Translational Radiation Oncology
https://www.readbyqxmd.com/read/29590424/the-t2-flair-mismatch-sign-as-an-imaging-marker-for-non-enhancing-idh-mutant-1p-19q-intact-lower-grade-glioma-a-validation-study
#8
Martinus P G Broen, Marion Smits, Maarten M J Wijnenga, Hendrikus J Dubbink, Monique H M E Anten, Olaf E M G Schijns, Jan Beckervordersandforth, Alida A Postma, Martin J van den Bent
Background: The purpose of this study was to assess the reproducibility of the previously described T2-FLAIR mismatch sign as a specific imaging marker in non-enhancing isocitrate dehydrogenase (IDH) mutant, 1p/19q non-codeleted lower grade glioma (LGG), encompassing both diffuse and anaplastic astrocytoma. Methods: MR scans (n=154) from three separate databases with genotyped LGG were evaluated by two independent reviewers to assess (i) presence/absence of "T2-FLAIR mismatch" sign and (ii) presence/absence of homogenous signal on T2WI...
March 26, 2018: Neuro-oncology
https://www.readbyqxmd.com/read/29589532/targeting-gap-junctions-new-insights-in-the-treatment-of-major-depressive-disorder
#9
Denis Sarrouilhe, Marc Mesnil, Catherine Dejean
BACKGROUND: Major depressive disorder (MDD) is a multifactorial chronic and debilitating mood disease with high lifetime prevalence and associated with excess mortality. Treatments of this disease are not effective in all patients showing the need to find new therapeutic targets. OBJECTIVE: This review aims to update our knowledge about the involvement of astroglial gap junctions and hemichannels in MDD and to show how they have become potential targets for the treatment of this pathology...
March 26, 2018: Current Medicinal Chemistry
https://www.readbyqxmd.com/read/29569086/pediatric-cerebellar-pilocytic-astrocytoma-presenting-with-spontaneous-intratumoral-hemorrhage
#10
REVIEW
Carmine Antonio Donofrio, Filippo Gagliardi, Marcella Callea, Camillo Ferrari da Passano, Maria Rosa Terreni, Andrea Cavalli, Alfio Spina, Stefania Acerno, Michele Bailo, Samer K Elbabaa, Pietro Mortini
Pilocytic astrocytomas (PAs) are benign glial tumors and one of the most common childhood posterior fossa tumors. Spontaneous intratumoral hemorrhage in PAs occurs occasionally, in about 8-20% of cases. Cerebellar hemorrhages in pediatric population are rare and mainly due to head injuries, rupture of vascular malformations, infections, or hematological diseases. We have investigated the still controversial and unclear pathophysiology underlying intratumoral hemorrhage in PAs. Bleeding in low-grade tumors might be related to structural abnormalities and specific angio-architecture of tumor vessels, such as degenerative mural hyalinization, "glomeruloid" endothelial proliferation, presence of encased micro-aneurysms, and glioma-induced neoangiogenesis...
March 22, 2018: Neurosurgical Review
https://www.readbyqxmd.com/read/29526067/spinal-cord-subependymoma-surgery-a-multi-institutional-experience
#11
Woon Tak Yuh, Chun Kee Chung, Sung-Hye Park, Ki-Jeong Kim, Sun-Ho Lee, Kyoung-Tae Kim
OBJECTIVE: A spinal cord subependymoma is an uncommon, indolent, benign spinal cord tumor. It is radiologically similar to a spinal cord ependymoma, but surgical findings and outcomes differ. Gross total resection of the tumor is not always feasible. The present study was done to determine the clinical, radiological and pathological characteristics of spinal cord subependymomas. METHODS: We retrospectively reviewed the medical records of ten spinal cord subependymoma patients (M : F=4 : 6; median 38 years; range, 21-77) from four institutions...
March 2018: Journal of Korean Neurosurgical Society
https://www.readbyqxmd.com/read/29525892/when-the-ends-are-really-the-beginnings-targeting-telomerase-for-treatment-of-gbm
#12
REVIEW
Saumya R Bollam, Michael E Berens, Harshil D Dhruv
PURPOSE OF REVIEW: High-throughput genomic sequencing has identified alterations in the gene encoding human telomerase reverse transcriptase (TERT) as points of interest for elucidating the oncogenic mechanism of multiple different cancer types, including gliomas. In gliomas, the TERT promoter mutation (TPM) and resultant overexpression of TERT are observed mainly in the most aggressive (primary glioblastoma/grade IV astrocytoma) and the least aggressive (grade II oligodendroglioma) cases...
March 10, 2018: Current Neurology and Neuroscience Reports
https://www.readbyqxmd.com/read/29525720/targeting-metabotropic-glutamate-receptors-in-the-treatment-of-primary-brain-tumors
#13
REVIEW
Luisa Iacovelli, Rosamaria Orlando, Alessandro Rossi, Paola Spinsanti, Daniela Melchiorri, Ferdinando Nicoletti
In spite of the recent advancement in the molecular characterization of malignant gliomas and medulloblastomas, the treatment of primary brain tumors remains suboptimal. The use of small molecule inhibitors of intracellular signaling pathways, inhibitors of angiogenesis, and immunotherapic agents is limited by systemic adverse effects, limited brain penetration, and, in some cases, lack of efficacy. Thus, adjuvant chemo-therapy and radiotherapy still remain the gold standard in the treatment of grade-IV astrocytoma (glioblastoma multiforme) and medulloblastoma...
March 8, 2018: Current Opinion in Pharmacology
https://www.readbyqxmd.com/read/29524717/clinical-characteristics-and-prognostic-analysis-of-glioma-with-hiv-patients
#14
Tianwei Wang, Ting Gao, Xiaodong Niu, Xiao Xing, Yuan Yang, Yanhui Liu, Qing Mao
OBJECTIVE: The aim of this study was to perform an survival analysis of HIV patients with glioma and to assess the relationship between various prognostic factors and overall survival. METHODS: We reported in detail the management and prognosis of two patients in our hospital and performed a quantitative and comprehensive systematic literature review of patients with HIV-associated glioma. We combined our treatment experience with retrospectively obtained treatment information and studied the resultant survival time to statistically analyze and discuss whether age, surgery, gender, WHO grade, radiotherapy, chemotherapy and RT combined CTh could predict patients' survival...
March 7, 2018: World Neurosurgery
https://www.readbyqxmd.com/read/29498601/edema-of-the-optic-tract-in-patients-with-tumors-of-the-sellar-region-clinical-and-visual-implications-in-the-pediatric-population
#15
Aurore Bussat, Maia Proisy, Bertrand Bruneau, Guillaume Bouzillé, Céline Chappé, Laurent Riffaud
OBJECTIVE Tumor-related edema of the optic tract (EOT) corresponds to a preferential posterior distribution of peritumoral edema along the white matter tract of the visual system. To date, the consequences of EOT have never been evaluated specifically in the pediatric population. In this study, the authors attempted to identify clinical and radiological features associated with the development of EOT and the specific influence of this edema on visual function. METHODS A retrospective review was performed of data collected from patients younger than 18 years who underwent surgery for a tumor in the sellar region at the authors' institution between January 2005 and January 2016...
March 2, 2018: Journal of Neurosurgery. Pediatrics
https://www.readbyqxmd.com/read/29487669/spinal-cord-astrocytoma-a-unique-presentation-of-abdominal-pain
#16
Kasey Jackson, Sameer Lapsia, Michael Strunc, Gary Tye
A previously healthy male presented at age 5 years with recurrent abdominal pain that occurred diffusely. The pain was severe enough to cause episodic screaming, especially at night with spontaneous resolution. The patient was initially treated for constipation but when motor symptoms began to develop, imaging revealed the cause of his pain to be a spinal cord mass. The tumor was treated with steroids, and biopsy confirmed a grade II spinal cord astrocytoma. We describe this unusual presentation of a pediatric spinal cord astrocytoma and review the literature...
February 2018: Radiology Case Reports
https://www.readbyqxmd.com/read/29479088/short-term-outcomes-following-surgery-in-brain-tumours-sans-neuronavigation
#17
Mamoon Ur Rashid, Muhammad Junaid, Syed Sarmad Bukhari, Afeera Afsheen
OBJECTIVE: To determine the presentation and frequency of various intracranial neoplasms and assess outcomes for patients who underwent surgery without neuronavigation. METHODS: This retrospective study was conducted at Combined Military Hospital, Peshawar, Pakistan, and comprised medical records related to the period from August 2011 to July 2014. Patient histories, examination reports and preoperative and post-operative radiological scans were reviewed and extent of excision was determined based on these coupled with recurrence rates...
February 2018: JPMA. the Journal of the Pakistan Medical Association
https://www.readbyqxmd.com/read/29458374/new-insights-into-long-noncoding-rnas-and-their-roles-in-glioma
#18
REVIEW
Zixuan Peng, Changhong Liu, Minghua Wu
Glioma is one of the most prevalent types of primary intracranial carcinoma with varying malignancy grades I-IV and histological subtypes, including astrocytomas, glioblastoma multiform (GBM), oligodendrogliomas and mixed tumors. Glioma is characterized by rapid cell proliferation and angiogenesis, and the WHO grade IV glioblastoma, which is highly malignant with poor prognosis because GBM stem-like cells (GSCs) are resistant to conventional therapy and easily recrudescent, accounts for the majority of gliomas...
February 19, 2018: Molecular Cancer
https://www.readbyqxmd.com/read/29455369/intradural-spinal-tumors-in-adults-update-on-management-and-outcome
#19
REVIEW
Malte Ottenhausen, Georgios Ntoulias, Imithri Bodhinayake, Finn-Hannes Ruppert, Stefan Schreiber, Annette Förschler, John A Boockvar, Andreas Jödicke
Among spinal tumors that occur intradurally, meningiomas, nerve sheath tumors, ependymomas, and astrocytomas are the most common. While a spinal MRI is the state of the art to diagnose intradural spinal tumors, in some cases CT scans, angiography, CSF analyses, and neurophysiological examination can be valuable. The management of these lesions depends not only on the histopathological diagnosis but also on the clinical presentation and the anatomical location, allowing either radical resection as with most extramedullary lesions or less invasive strategies as with intramedullary lesions...
February 17, 2018: Neurosurgical Review
https://www.readbyqxmd.com/read/29452419/temozolomide-associated-hypermutation-in-gliomas
#20
Serah Choi, Yao Yu, Matthew R Grimmer, Michael Wahl, Susan M Chang, Joseph F Costello
Low-grade gliomas cause considerable morbidity and most will recur after initial therapy. At recurrence, low-grade gliomas can undergo transformation to high-grade gliomas (grade III or grade IV), which are associated with worse prognosis. Temozolomide (TMZ) provides survival benefit in patients with glioblastomas (GBMs) but its value in patients with low-grade gliomas is less clear. A subset of TMZ-treated, IDH-mutant, low-grade astrocytomas recur as more malignant tumors with thousands of de novo, coding mutations bearing a signature of TMZ-induced hypermutation...
February 14, 2018: Neuro-oncology
keyword
keyword
113782
1
2
Fetch more papers »
Fetching more papers... Fetching...
Read by QxMD. Sign in or create an account to discover new knowledge that matter to you.
Remove bar
Read by QxMD icon Read
×

Search Tips

Use Boolean operators: AND/OR

diabetic AND foot
diabetes OR diabetic

Exclude a word using the 'minus' sign

Virchow -triad

Use Parentheses

water AND (cup OR glass)

Add an asterisk (*) at end of a word to include word stems

Neuro* will search for Neurology, Neuroscientist, Neurological, and so on

Use quotes to search for an exact phrase

"primary prevention of cancer"
(heart or cardiac or cardio*) AND arrest -"American Heart Association"