keyword
MENU ▼
Read by QxMD icon Read
search

Intracranial tumor

keyword
https://www.readbyqxmd.com/read/28931264/assessment-of-the-accuracy-and-errors-of-head-up-display-by-an-optical-neuronavigation-system-in-brain-tumor-surgery
#1
Kenichiro Asano, Kosuke Katayama, Kiyohide Kakuta, Kanae Oyama, Hiroki Ohkuma
BACKGROUND: A head-up display (HUD) in which navigational information is projected into the microscope view may enable surgeons to perform operations more efficiently. Projecting depictions of both tumor and important intracranial structures on the HUD may facilitate safe surgery. OBJECTIVE: To investigate accuracy and errors regarding important intracranial structures, errors due to brain shifts, and preservation rates for important intracranial structures. METHODS: A total of 184 surgeries in 172 patients were performed using this operation system...
February 1, 2017: Operative Neurosurgery (Hagerstown, Md.)
https://www.readbyqxmd.com/read/28931252/a-simplified-method-of-accurate-postprocessing-of-diffusion-tensor-imaging-for-use-in-brain-tumor-resection
#2
Phillip A Bonney, Andrew K Conner, Lillian B Boettcher, Ahmed A Cheema, Chad A Glenn, Adam D Smitherman, Nathan A Pittman, Michael E Sughrue
BACKGROUND: Use of diffusion tensor imaging (DTI) in brain tumor resection has been limited in part by a perceived difficulty in implementing the techniques into neurosurgical practice. OBJECTIVE: To demonstrate a simple DTI postprocessing method performed without a neuroscientist and to share results in preserving patient function while aggressively resecting tumors. METHODS: DTI data are obtained in all patients with tumors located within presumed eloquent cortices...
February 1, 2017: Operative Neurosurgery (Hagerstown, Md.)
https://www.readbyqxmd.com/read/28926844/atypical-presentation-of-a-pediatric-cerebellar-ganglioglioma
#3
Richard Bram, Roberta J Seidman, David Chesler
BACKGROUND/AIMS: Gangliogliomas (GGs) are rare central nervous system tumors occurring primarily in the supratentorial compartment with infratentorial instances most often involving the brain stem. Infratentorial GGs typically present with signs and symptoms of increased intracranial pressure (ICP), cranial nerve deficits, or focal cerebellar findings; rarely, these tumors have been associated with focal seizures. METHODS: In this report, we describe an atypical presentation of a cerebellar GG in a 20-month-old male who initially presented with syncope and emesis in the absence of electrographic evidence of seizures, radiographic evidence of hydrocephalus, or elevated ICP...
September 20, 2017: Pediatric Neurosurgery
https://www.readbyqxmd.com/read/28924548/remodeling-the-blood-brain-barrier-microenvironment-by-natural-products-for-brain-tumor-therapy
#4
REVIEW
Xiao Zhao, Rujing Chen, Mei Liu, Jianfang Feng, Jun Chen, Kaili Hu
Brain tumor incidence shows an upward trend in recent years; brain tumors account for 5% of adult tumors, while in children, this figure has increased to 70%. Moreover, 20%-30% of malignant tumors will eventually metastasize into the brain. Both benign and malignant tumors can cause an increase in intracranial pressure and brain tissue compression, leading to central nervous system (CNS) damage which endangers the patients' lives. Despite the many approaches to treating brain tumors and the progress that has been made, only modest gains in survival time of brain tumor patients have been achieved...
September 2017: Acta Pharmaceutica Sinica. B
https://www.readbyqxmd.com/read/28924528/near-fatal-gastrointestinal-hemorrhage-in-a-child-with-medulloblastoma-on-high-dose-dexamethasone
#5
Derek Yecies, Daniel Tawfik, Jennifer Damman, Chad Thorson, David S Hong, Gerald A Grant, Rachel Bensen, Mihaela Damian
A four-year-old female was admitted to a university-based children's hospital with a newly-diagnosed posterior fossa tumor. She was started on famotidine and high-dose dexamethasone and underwent gross total resection of a medulloblastoma. She was continued on dexamethasone and famotidine. She exhibited postoperative posterior fossa syndrome and was started on enteral feeds via the nasoduodenal tube. She had small gastrointestinal bleeds on postoperative days eight, 11, and 18, and was found to have a well-circumscribed posterior duodenal ulcer...
July 7, 2017: Curēus
https://www.readbyqxmd.com/read/28924071/-a-case-of-a-solitary-plasmacytoma-extending-into-the-extradural-space
#6
Hiroshi Nakano, Koichi Kato, Shunsuke Nomura, Masanori Nakagawa, Takashi Higa, Shigeru Kadoyama, Takakazu Kawamata, Hiroshi Ujiie, Akira Teramoto
Plasmacytomas are characterized by a monoclonal proliferation of plasma cells, and constitute the bulk of multiple myeloma. A solitary plasmacytoma is a rare entity, and is even more unlikely to occur intracranially. Here we present a 62-year-old man with an intracranial tumor. Magnetic resonance imaging revealed a large mass on the surface of the right fronto-parieto-temporal region, with extradurally directed growth. The tumor was enhanced homogenously by gadolinium, with dural tail-like findings, which resembled a meningioma...
September 2017: No Shinkei Geka. Neurological Surgery
https://www.readbyqxmd.com/read/28923299/masson-s-tumor-revealed-by-an-intracerebral-hematoma-case-report-and-a-review-of-the-literature
#7
C Salaud, D Loussouarn, K Buffenoir, T Riem
We report the case of a 56-year-old woman who underwent total resection of a Masson's tumor or intravascular papillary endothelial hyperplasia (IPEH), which was discovered due to a left temporal intracerebral hematoma revealed by aphasia. IPEH is more often localized on cutaneous and subcutaneous locations, intracranial IPEH are rare and only approximately twenty cases have been published to date. These tumors are a benign vascular lesion composed of papillary intravascular proliferation of epithelial cellular associated thrombosis with fibrin deposits responsible for vascular lumen obliteration...
September 15, 2017: Neuro-Chirurgie
https://www.readbyqxmd.com/read/28923059/osteoglycin-promotes-meningioma-development-through-downregulation-of-nf2-and-activation-of-mtor-signaling
#8
Yu Mei, Ziming Du, Changchen Hu, Noah F Greenwald, Malak Abedalthagafi, Nathalie Y R Agar, Gavin P Dunn, Wenya Linda Bi, Sandro Santagata, Ian F Dunn
BACKGROUND: Meningiomas are the most common primary intracranial tumors in adults. While a majority of meningiomas are slow growing neoplasms that may cured by surgical resection, a subset demonstrates more aggressive behavior and insidiously recurs despite surgery and radiation, without effective alternative treatment options. Elucidation of critical mitogenic pathways in meningioma oncogenesis may offer new therapeutic strategies. We performed an integrated genomic and molecular analysis to characterize the expression and function of osteoglycin (OGN) in meningiomas and explored possible therapeutic approaches for OGN-expressing meningiomas...
September 18, 2017: Cell Communication and Signaling: CCS
https://www.readbyqxmd.com/read/28922884/a-single-institution-experience-with-pineal-region-tumors-50-tumors-over-1-decade
#9
Isaac Josh Abecassis, Brian Hanak, Jason Barber, Martin Mortazavi, Richard G Ellenbogen
BACKGROUND: Pineal region tumors are rare intracranial tumors that are more common in children than adults. Surgical management of tumors in this region using a tailored approach is a strategy that enhances extent of resection and neurological outcome. OBJECTIVE: To review our institutional experience with pineal region tumors in children and adults over the past 10 years. METHODS: Our institutional pathology database and patient records were retrospectively reviewed for details regarding clinical and radiological presentation, surgical management, extent of resection, morbidity, and neurological outcome...
October 1, 2017: Operative Neurosurgery (Hagerstown, Md.)
https://www.readbyqxmd.com/read/28916225/stereotactic-radiosurgery-of-early-melanoma-brain-metastases-after-initiation-of-anti-ctl-4-treatment-is-associated-with-improved-intracranial-control
#10
Yi An, Wen Jiang, Betty Y S Kim, Jack M Qian, Chad Tang, Penny Fang, Jennifer Logan, Neil M D'Souza, Lauren E Haydu, Xin A Wang, Kenneth R Hess, Harriet Kluger, Isabella C Glitza, Anita Mahajan, James W Welsh, Steven H Lin, James B Yu, Michael A Davies, Patrick Hwu, Erik P Sulman, Paul D Brown, Veronica L S Chiang, Jing Li
BACKGROUND: Numerous studies suggest that radiation can boost antitumor immune response by stimulating release of tumor-specific antigens. However, the optimal timing between radiotherapy and immune checkpoint blockade to achieve potentially synergistic benefits is unclear. MATERIAL AND METHODS: Multi-institutional retrospective analysis was conducted of ninety-nine metastatic melanoma patients from 2007 to 2014 treated with ipilimumab who later received stereotactic radiosurgery (SRS) for new brain metastases that developed after starting immunotherapy...
September 12, 2017: Radiotherapy and Oncology: Journal of the European Society for Therapeutic Radiology and Oncology
https://www.readbyqxmd.com/read/28915655/notch-system-is-differentially-expressed-and-activated-in-pituitary-adenomas-of-distinct-histotype-tumor-cell-lines-and-normal-pituitaries
#11
Sofia Perrone, Lautaro Zubeldia-Brenner, Elias Gazza, Gianina Demarchi, Leticia Baccarini, Agustin Baricalla, Freya Mertens, Guillermina Luque, Hugo Vankelecom, Silvia Berner, Damasia Becu-Villalobos, Carolina Cristina
Pituitary adenomas are among the most frequent intracranial neoplasms and treatment depends on tumor subtype and clinical features. Unfortunately, non responder cases occur, then new molecular targets are needed. Notch system component expression and activation data are scarce in pituitary tumorigenesis, we therefore aimed to characterize Notch system in pituitary tumors of different histotype. In human pituitary adenomas we showed NOTCH1-4 receptors, JAGGED1 ligand and HES1 target gene expression with positive correlations between NOTCH1,2,4 and HES1, and NOTCH3 and JAGGED1 denoting Notch system activation in a subset of tumors...
August 22, 2017: Oncotarget
https://www.readbyqxmd.com/read/28912278/pituitary-macroadenoma-and-visual-impairment-postoperative-outcome-prediction-with-contrast-enhanced-fiesta
#12
S Hisanaga, S Kakeda, J Yamamoto, K Watanabe, J Moriya, T Nagata, Y Fujino, H Kondo, S Nishizawa, Y Korogi
BACKGROUND AND PURPOSE: Contrast-enhanced FIESTA can depict anterior optic pathways in patients with large suprasellar tumors. We assessed whether the degree of kink in the optic nerve at the optic canal orifice on contrast-enhanced FIESTA correlates with the postoperative improvement of visual impairment in patients with pituitary macroadenoma. MATERIALS AND METHODS: Thirty-one patients with pituitary macroadenoma who underwent preoperative MR imaging and an operation were evaluated...
September 14, 2017: AJNR. American Journal of Neuroradiology
https://www.readbyqxmd.com/read/28912136/tumor-resection-boosts-therapeutic-efficacy-of-encapsulated-stem-cells-expressing-a-highly-secretable-variant-of-interferon-%C3%AE-in-glioblastomas
#13
Sung Hugh Choi, Daniel W Stuckey, Sara Pignatta, Clemens Reinshagen, Jasneet K Khalsa, Nicolaas C Roozendaal, Jordi Martinez-Quintanilla, Kaoru Tamura, Erhan Keles, Khalid Shah
PURPOSE: Despite tumor resection being the frontline clinical care for glioblastoma (GBM) patients, nearly all preclinical immune therapy models intends to treat established GBM tumor. Characterizing cytoreductive surgery-induced immune-response combined with the administration of immune cytokines has the potential of offering a new treatment paradigm of immune therapy for GBMs.  Experimental design: We developed syngeneic orthotopic mouse GBM models of tumor-resection and characterized the immune response of intact and resected tumors...
September 14, 2017: Clinical Cancer Research: An Official Journal of the American Association for Cancer Research
https://www.readbyqxmd.com/read/28904584/central-nervous-system-inflammatory-myofibroblastic-tumor-masquerading-as-chronic-suppurative-otitis-media
#14
Namit Singhal, Vinay Agarwal, Anu Chawla, Rajiv Tangri
Inflammatory myofibroblastic tumor (IMT) is a rare tumor in the central nervous system (CNS), mostly being extracranial. Approximately 100 sporadic cases have been reported in the literature. The rarity of the tumor, its various histopathological characteristics, and its variable aggressive course render it difficult to diagnose and treat. IMT is generally a histological diagnosis which is rarely suspected preoperatively. It mimics other intracranial tumors such as giant cell tumor, hemangiopericytoma, anaplastic meningioma, plasmacytoma, and lymphoma...
April 2017: Journal of Pediatric Neurosciences
https://www.readbyqxmd.com/read/28903422/cdk4-6-inhibition-is-more-active-against-the-glioblastoma-proneural-subtype
#15
Ming Li, Aizhen Xiao, Desiree Floyd, Inan Olmez, Jeongwu Lee, Jakub Godlewski, Agnieszka Bronisz, Krishna P L Bhat, Erik P Sulman, Ichiro Nakano, Benjamin Purow
Glioblastoma (GBM) is the most common and lethal brain tumor. Gene expression profiling has classified GBM into distinct subtypes, including proneural, mesenchymal, and classical, and identifying therapeutic vulnerabilities of these subtypes is an extremely high priority. We leveraged The Cancer Genome Atlas (TCGA) data, in particular for microRNA expression, to seek druggable core pathways in GBM. The E2F1-regulated miR-17˜92 cluster and its analogs are shown to be highly expressed in proneural GBM and in GSC lines, suggesting the E2F cell cycle pathway might be a key driver in proneural GBM...
August 15, 2017: Oncotarget
https://www.readbyqxmd.com/read/28900829/clinical-radiological-pathological-and-prognostic-aspects-of-intraventricular-oligodendroglioma-comparison-with-central-neurocytoma
#16
Xiang Xiao, Jun Zhou, Jun Wang, Lei Yang, Chunhong Wang, Yikai Xu, Yuankui Wu
Studies comparing intraventricular oligodendroglioma (IVO) and central neurocytoma (CN) in terms of their clinical, radiological and pathological features are scarce. We, therefore, investigated the similarities and differences between these types of tumors to get a better understanding of how they may be more properly diagnosed and treated. The clinical manifestations, CT/MRI findings, pathological characteristics and clinical outcomes of 8 cases of IVOs and 12 cases of CNs were analyzed retrospectively. Both IVO and CN occurred most commonly in young adults and manifested with symptoms of increased intracranial pressure secondary to obstructive hydrocephalus...
September 12, 2017: Journal of Neuro-oncology
https://www.readbyqxmd.com/read/28899410/nucleolar-and-spindle-associated-protein-1-promotes-the-aggressiveness-of-astrocytoma-by-activating-the-hedgehog-signaling-pathway
#17
Xianqiu Wu, Benke Xu, Chao Yang, Wentao Wang, Dequan Zhong, Zhan Zhao, Longshuang He, Yuanjun Hu, Lili Jiang, Jun Li, Libing Song, Wei Zhang
BACKGROUND: The prognosis of human astrocytoma is poor, and the molecular alterations underlying its pathogenesis still needed to be elucidated. Nucleolar and spindle associated protein 1 (NUSAP1) was observed in several types of cancers, but its role in astrocytoma remained unknown. METHODS: The expression of NUSAP1 in astrocytoma cell lines and tissues were measured with western blotting and Real-Time PCR. Two hundred and twenty-one astrocytoma tissue samples were analyzed by immunochemistry to demonstrate the correlation between the NUSAP1 expression and clinicopathological characteristics...
September 12, 2017: Journal of Experimental & Clinical Cancer Research: CR
https://www.readbyqxmd.com/read/28890044/recursive-partitioning-analysis-for-disease-progression-in-adult-intracranial-ependymoma-patients
#18
Sang Woo Song, Yun-Sik Dho, Jin Wook Kim, Yong Hwy Kim, Sun Ha Paek, Dong Gyu Kim, Hee-Won Jung, Sung-Hye Park, Seung Hong Choi, Tae Min Kim, Soon-Tae Lee, Il Han Kim, Sang Hyung Lee, Chul-Kee Park
Intracranial ependymomas are rare tumors in adults. Although recent advancements from demographic, clinical, and biological studies provide new perspectives on this rare tumor, they are not yet widely applied in clinical practice. Currently, most ependymoma patients are treated in the same way: via surgical resection with adjuvant radiation therapy. However, it is reasonable to apply more aggressive treatment for high-risk patients. From this point of view, we performed a study to investigate risk grouping for disease progression of intracranial ependymomas in adults...
September 7, 2017: Journal of Clinical Neuroscience: Official Journal of the Neurosurgical Society of Australasia
https://www.readbyqxmd.com/read/28890010/lumbosacral-subdural-hematoma-following-glioblastoma-multiforme-resection-possible-radiographic-evidence-for-the-downward-migration-of-intracranial-blood
#19
Gabriella M Paisan, Thomas J Buell, Daniel Raper, Ashok Asthagiri
Spinal subdural hematomas (SSDHs) are rare and usually associated with bleeding diatheses, trauma, iatrogenic injury, spinal vascular malformations, or intraspinal tumors. We report a case of a 75-year-old male who developed a symptomatic lumbosacral SSDH after undergoing resection of a right temporal glioblastoma multiforme. The patient subsequently recovered and was discharged home. Over the next two weeks he developed progressively worsening symptoms of lower back pain, lower extremity weakness, and urinary retention...
September 7, 2017: World Neurosurgery
https://www.readbyqxmd.com/read/28887285/the-occipital-artery-as-an-alternative-donor-for-low-flow-bypass-to-anterior-circulation-after-ica-occlusion-failure-prior-to-exenteration-for-an-atypical-cavernous-sinus-meningioma-a-technical-case-report
#20
Shunya Hanakita, Stéphanie Lenck, Moujahed Labidi, Kentaro Watanabe, Damien Bresson, Sébastien Froelich
BACKGROUND: and Importance: In skull-base tumors involving the cavernous sinus (CS), indications for aggressive resection are sparse and must be carefully examined because of their invasiveness. With careful evaluation, techniques including internal carotid artery (ICA) sacrifice with or without extracranial-intracranial (EC-IC) bypass may still be an option in some cases. In addition, previous surgery with the sacrifice of potential donor vessels requires adjusting the revascularization strategy...
September 5, 2017: World Neurosurgery
keyword
keyword
114568
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"