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Supratentorial tumor

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https://www.readbyqxmd.com/read/28059651/automatic-estimation-of-extent-of-resection-and-residual-tumor-volume-of-patients-with-glioblastoma
#1
Raphael Meier, Nicole Porz, Urspeter Knecht, Tina Loosli, Philippe Schucht, Jürgen Beck, Johannes Slotboom, Roland Wiest, Mauricio Reyes
OBJECTIVE In the treatment of glioblastoma, residual tumor burden is the only prognostic factor that can be actively influenced by therapy. Therefore, an accurate, reproducible, and objective measurement of residual tumor burden is necessary. This study aimed to evaluate the use of a fully automatic segmentation method-brain tumor image analysis (BraTumIA)-for estimating the extent of resection (EOR) and residual tumor volume (RTV) of contrast-enhancing tumor after surgery. METHODS The imaging data of 19 patients who underwent primary resection of histologically confirmed supratentorial glioblastoma were retrospectively reviewed...
January 6, 2017: Journal of Neurosurgery
https://www.readbyqxmd.com/read/28059629/extra-axial-ependymoma-of-the-cerebral-convexity-a-very-rare-intracranial-adult-tumor
#2
Soufiane Berhili, Abdellah Aissa, Selma Kadiri, Nadia Cherradi, Sanae El Majjaoui, Hanan El Kacemi, Tayeb Kebdani, Noureddine Benjaafar
Background Ependymomas are rare adult tumors that originate from the ventricular system or the ependymal surface of the central canal. Extra-axial supratentorial ependymomas are extremely rare, and only five cases have been reported to date in the English literature. Case presentation A 46-year-old previously healthy male presented with a gradual painless loss of vision in the right eye. Cerebral MRI showed a right parietal-occipital lesion resembling an atypical meningioma. Surgical resection was performed, and immunohistochemical staining results concluded that it was a very uncommon location of a grade 3 ependymoma...
January 1, 2017: Neuroradiology Journal
https://www.readbyqxmd.com/read/28039366/the-use-of-o-2-18f-fluoroethyl-l-tyrosine-pet-in-the-diagnosis-of-gliomas-located-in-the-brainstem-and-spinal-cord
#3
Caroline Tscherpel, Veronika Dunkl, Garry Ceccon, Gabriele Stoffels, Natalie Judov, Marion Rapp, Philipp T Meyer, Elena Rota Kops, Johannes Ermert, Gereon R Fink, Nadim J Shah, Karl-Josef Langen, Norbert Galldiks
BACKGROUND: Despite an increasing number of O-(2-(18)F-fluoroethyl)-L-tyrosine ((18)F-FET) PET studies in supratentorial gliomas, studies regarding the usefulness of (18)F-FET PET in brainstem and spinal cord gliomas to date remain scarce. METHODS: Thirty-six (18)F-FET PET scans were performed in 29 patients with brainstem (n = 29 scans) or spinal cord glioma (n = 7 scans). In 32 of 36 PET scans, a dynamic acquisition was performed. Fifteen scans in 15 patients were performed to assess newly diagnosed lesions, and 21 scans were obtained during follow-up: for diagnosing tumor progression (n = 15 scans in 14 patients) as well as for treatment monitoring (n = 6 scans in 3 patients)...
December 29, 2016: Neuro-oncology
https://www.readbyqxmd.com/read/28038915/preoperative-grading-of-supratentorial-gliomas-using-high-or-standard-b-value-diffusion-weighted-mr-imaging-at-3t
#4
M M Cihangiroglu, E Ozturk-Isik, Z Firat, O Kilickesmez, A M Ulug, U Ture
PURPOSE: The goal of this study was to compare diffusion-weighted magnetic resonance imaging (DW-MRI) using high b-value (b=3000s/mm(2)) to DW-MRI using standard b-value (b=1000s/mm(2)) in the preoperative grading of supratentorial gliomas. MATERIALS AND METHODS: Fifty-three patients with glioma had brain DW-MRI at 3T using two different b-values (b=1000s/mm(2) and b=3000s/mm(2)). There were 35 men and 18 women with a mean age of 40.5±17.1 years (range: 18-79 years)...
December 27, 2016: Diagnostic and Interventional Imaging
https://www.readbyqxmd.com/read/28017579/seizures-caused-by-brain-tumors-in-children
#5
Iván Sánchez Fernández, Tobias Loddenkemper
PURPOSE: To review the epidemiology, clinical features, and treatment of seizures secondary to pediatric brain tumors. METHOD: Literature review. RESULTS: Pediatric brain tumors are the most common solid pediatric tumor and the most common cause of death in pediatric cancer. Seizures are one of the most common symptoms of pediatric brain tumors. Factors associated with increased risk of seizures include supratentorial location, gray matter involvement, low-grade, and certain histological features-especially dysembryoplastic neuroepithelial tumor, ganglioglioma, and oligodendroglioma...
December 7, 2016: Seizure: the Journal of the British Epilepsy Association
https://www.readbyqxmd.com/read/28005045/-treatment-of-epilepsy-in-children-with-brain-tumors
#6
A A Kholin, V S Khalilov, I G Vasil'ev, E S Il'ina, N N Zavadenko
AIM: Symptomatic focal epilepsy is frequently caused by supratentorial brain tumors that may be surgically removed. The authors studied outcomes of surgical treatment depending on the use of electrocorticography c (ECoG). MATERIAL AND METHODS: Seventy-five children, aged 5-7 years, with supratentorial brain tumors were examined. Symptomatic epilepsy was found in 52 (69.3%) patients. Dysembryoplastic neuroepithelial tumors (DNET) and fibrillary astrocytomas were the most epileptogenic tumors...
2016: Zhurnal Nevrologii i Psikhiatrii Imeni S.S. Korsakova
https://www.readbyqxmd.com/read/27989974/volumetric-analysis-using-low-field-intraoperative-magnetic-resonance-imaging-for-168-newly-diagnosed-supratentorial-glioblastomas-effects-of-extent-of-resection-and-residual-tumor-volume-on-survival-and-recurrence
#7
Atsushi Fukui, Yoshihiro Muragaki, Taiichi Saito, Takashi Maruyama, Masayuki Nitta, Soko Ikuta, Takakazu Kawamata
BACKGROUND: Extent of resection (EOR) remains controversial in therapy for glioblastoma (GBM). However, an increasing number of studies favor maximum EOR as being associated with longer patient survival. Residual tumor volume (RTV) has also recently emerged as a prognostic factor. Low-field intraoperative magnetic resonance imaging (iMRI) has contributed to improve the EOR of GBM. The purpose of this study was to analyze the relationships between EOR/RTV and overall survival (OS)/progression-free survival (PFS) in patients with newly diagnosed GBM using low-field iMRI...
October 28, 2016: World Neurosurgery
https://www.readbyqxmd.com/read/27984379/is-neurosurgery-with-adjuvant-radiotherapy-an-effective-treatment-modality-in-isolated-brain-involvement-from-endometrial-cancer-from-case-report-to-analysis
#8
Gunsu Kimyon, Taner Turan, Derman Basaran, Osman Turkmen, Alper Karalok, Tolga Tasci, Gokhan Tulunay, Mehmet Faruk Kose
AIM: The aim of this study was to evaluate the treatment options and post-brain involvement survival (PBIS) of patients with isolated brain involvement from endometrial cancer (EC). MATERIALS AND METHODS: The literature electronic search was conducted from 1972 to May 2016 to identify articles about isolated (without extracranial metastases) brain involvement from EC at recurrence and the initial diagnosis. Forty-eight articles were found. After comprehensive evaluation of case series and case reports, the study included 49 cases...
December 15, 2016: International Journal of Gynecological Cancer
https://www.readbyqxmd.com/read/27932748/-hydrocephalus-associated-with-small-clinoidal-meningioma-that-resolved-after-tumor-removal-a-case-report
#9
Hidemoto Fujiwara, Toyotaka Aiba, Toru Watanabe, Tetsuya Hiraishi, Yukihiko Fujii
PURPOSE: Small meningiomas causing hydrocephalus without obstruction of the ventricular system are rare. Herein, we report a case of small clinoidal meningioma with communicating hydrocephalus, which resolved after tumor removal. CASE PRESENTATION: A 70-year-old woman presented with a 1-month history of memory disturbance followed by gait disturbance. MR images revealed a right clinoidal meningioma, 2 cm in diameter, and dilatation of the ventricles suggesting communicating hydrocephalus...
December 2016: No Shinkei Geka. Neurological Surgery
https://www.readbyqxmd.com/read/27919761/evaluating-the-impact-of-brain-metastasis-location-and-relative-volume-on-overall-survival-after-stereotactic-radiosurgery
#10
Ashley Emery, Daniel M Trifiletti, Kara D Romano, Nirav Patel, Mark E Smolkin, Jason P Sheehan
OBJECTIVE: Most evidence describing outcomes of patients with brain metastases is based upon the number of brain metastases, rather than location or volume. We sought to evaluate the impact of tumor location and each location's relative volume on overall survival (OS) among a large cohort of patients treated with stereotactic radiosurgery (SRS). METHODS: Clinical, radiographic, and dosimetric data were collected on patients treated with their first (if multiple) SRS for brain metastases...
December 2, 2016: World Neurosurgery
https://www.readbyqxmd.com/read/27894359/can-morphological-mri-differentiate-between-primary-central-nervous-system-lymphoma-and-glioblastoma
#11
H Malikova, E Koubska, J Weichet, J Klener, A Rulseh, R Liscak, Z Vojtech
BACKGROUND: Primary central nervous system lymphoma (PCNSL) is a rare, aggressive brain neoplasm that accounts for roughly 2-6% of primary brain tumors. In contrast, glioblastoma (GBM) is the most frequent and severe glioma subtype, accounting for approximately 50% of diffuse gliomas. The aim of the present study was to evaluate morphological MRI characteristics in histologically-proven PCNSL and GBM at the time of their initial presentation. METHODS: We retrospectively evaluated standard diagnostic MRI examinations in 54 immunocompetent patients (26 female, 28 male; age 62...
November 29, 2016: Cancer Imaging: the Official Publication of the International Cancer Imaging Society
https://www.readbyqxmd.com/read/27890753/geographically-remote-cerebral-venous-sinus-thrombosis-in-patients-with-intracranial-tumors
#12
Daniel M S Raper, Alicia M Zukas, David Schiff, Ashok R Asthagiri
Cerebral venous sinus thrombosis (CVST) related to intracranial tumors has most commonly been recognized as an operative complication related to local operative factors such as retraction or direct venous injury. CVST may also be caused by tumor related factors such as local mass effect, but rarely occurs geographically remote from the site of the tumor. We report six cases treated at our institution of intracranial supratentorial tumors associated with CVST. In each case, the CVST was remote from the surgical site...
November 24, 2016: World Neurosurgery
https://www.readbyqxmd.com/read/27889023/supratentorial-tumors-in-pediatric-patients
#13
REVIEW
Carlos Zamora, Thierry A G M Huisman, Izlem Izbudak
The breadth of tumors that can arise in the supratentorial brain in children is extensive. With the exception of those that result in seizures and the highly malignant histologies, supratentorial tumors may come to medical attention later compared with infratentorial tumors, as they are less commonly associated with ventricular obstruction. This article presents an overview of the neuroimaging characteristics of these entities, with particular attention to relevant features that may aid in narrowing the differential diagnosis, including correlation with demographics and clinical presentation...
February 2017: Neuroimaging Clinics of North America
https://www.readbyqxmd.com/read/27888628/impact-of-epidemiological-characteristics-of-supratentorial-gliomas-in-adults-brought-about-by-the-2016-world-health-organization-classification-of-tumors-of-the-central-nervous-system
#14
Haihui Jiang, Yong Cui, Junmei Wang, Song Lin
The latest World Health Organization (WHO) classification of tumors of the central nervous system (CNS) integrates both histological and molecular features in the definition of diagnostic entities. This new approach enrolls novel entities of gliomas. In this study, we aimed to reveal the epidemiological characteristics, including age at diagnosis, gender ratio, tumor distribution and survival, of these new entities. We retrospectively reclassified 1210 glioma samples according to the 2016 CNS WHO diagnostic criteria...
November 24, 2016: Oncotarget
https://www.readbyqxmd.com/read/27859957/retrospective-comparison-of-three-dimensional-conformal-radiation-therapy-vs-prednisolone-alone-in-30-cases-of-canine-infratentorial-brain-tumors
#15
Elisabetta Treggiari, Thomas W Maddox, Rita Gonçalves, Jerome Benoit, Julia Buchholz, Laura Blackwood
Infratentorial tumors are relatively infrequent in dogs and a lack of data makes it difficult to offer prognostic information. Untreated, dogs with these neoplasms have shorter survival times than those with supratentorial tumors. The role of radiation therapy (RT) in the management of infratentorial tumors is poorly defined and tumoral/peritumoral swelling in this site is a potential cause of serious acute side effects. The aim of this retrospective, cohort study was to describe cases of infratentorial tumors treated with fractionated three-dimensional conformal RT (3D CRT) and glucocorticoids (GC), and compare outcomes and survival with dogs affected by tumors in the same location that received GC alone...
November 15, 2016: Veterinary Radiology & Ultrasound
https://www.readbyqxmd.com/read/27857859/emergency-decompressive-craniectomy-after-removal-of-convexity-meningiomas
#16
Paolo Missori, Maurizio Domenicucci, Sergio Paolini, Cristina Mancarella, Serena Tola, Alessandro D'Elia, Nicola Marotta, Arsen Seferi, Vincenzo Esposito
BACKGROUND: Convexity meningiomas are benign brain tumors that are amenable to complete surgical resection and are associated with a low complication rate. The aim of this study was to identify factors that result in acute postoperative neurological worsening after the removal of convexity meningiomas. METHODS: Clinical evaluation and neuroradiological analysis of patients who underwent removal of a supratentorial convexity meningioma were reviewed. Patients were selected when their postoperative course was complicated by acute neurological deterioration requiring decompressive craniectomy...
2016: Surgical Neurology International
https://www.readbyqxmd.com/read/27854111/the-risk-of-hypotension-and-seizures-in-patients-receiving-prophylactic-anti-epileptic-drugs-for-supratentorial-craniotomy
#17
Julius Höhne, Karl M Schebesch, Christian Ott, Alexander Brawanski, Max Lange
BACKGROUND: Perioperative seizure prophylaxis with antiepileptic drugs (AED) has been advocated in patients undergoing supratentorial craniotomy. The practice remains controversial. The reasoning presupposes that the possibility of an adverse drug reaction from the AED is lower than the probability of harm from a seizure. Even short periods of hypotension during the operation can lead to acute kidney and myocardial injury. We retrospectively evaluated cardiovascular effects and tolerability of Levetiracetam (LEV) alone, LEV and Lacosamid (LCM) as compared to Phenytoin (PHT)...
November 17, 2016: Journal of Neurosurgical Sciences
https://www.readbyqxmd.com/read/27853494/preoperative-grading-of-astrocytic-supratentorial-brain-tumors-with-diffusion-weighted-magnetic-resonance-imaging-and-apparent-diffusion-coefficient
#18
Mahsa Raisi-Nafchi, Fariborz Faeghi, Alireza Zali, Hamidreza Haghighatkhah, Jalal Jalal-Shokouhi
BACKGROUND: Diffusion-weighted imaging (DWI) is a form of magnetic resonance imaging (MRI) based on measuring the random Brownian motion of water molecules within the biological tissues and is particularly useful in tumor characterization. OBJECTIVES: The purpose of this study was to evaluate the diagnostic value of DW MRI and the apparent diffusion coefficient (ADC) for preoperative grading of astrocytic supratentorial brain tumors. PATIENTS AND METHODS: Twenty-three patients (14 females, 9 males, mean age 43 years) with astrocytic supratentorial brain tumors underwent preoperative conventional MR imaging and DW MRI...
July 2016: Iranian Journal of Radiology: a Quarterly Journal Published By the Iranian Radiological Society
https://www.readbyqxmd.com/read/27845572/post-craniotomy-intracranial-infection-in-patients-with-brain-tumors-a-retrospective-analysis-of-5723-consecutive-patients
#19
Zhong-Hua Shi, Ming Xu, Yong-Zhi Wang, Xu-Ying Luo, Guang-Qiang Chen, Xin Wang, Tao Wang, Ming-Zhong Tang, Jian-Xin Zhou
AIM: To determine the risk factors for and the incidence, outcomes, and causative pathogens of post-craniotomy intracranial infection (PCII) in patients with brain tumors. METHODS: A retrospective study was performed of 5723 patients with brain tumors who were surgically treated between January 2012 and December 2013 in Beijing Tiantan Hospital. The patients' demographics, pathohistological diagnoses, surgical procedures, postoperative variables, causative pathogens, and outcomes were evaluated...
November 15, 2016: British Journal of Neurosurgery
https://www.readbyqxmd.com/read/27837434/prediction-of-genetic-subgroups-in-adult-supra-tentorial-gliomas-by-pre-and-intraoperative-parameters
#20
Shunsuke Nakae, Kazuhiro Murayama, Hikaru Sasaki, Masanobu Kumon, Yuya Nishiyama, Shigeo Ohba, Kazuhide Adachi, Shinya Nagahisa, Takuro Hayashi, Joji Inamasu, Masato Abe, Mitsuhiro Hasegawa, Yuichi Hirose
Recent progress in neuro-oncology has validated the significance of genetic diagnosis in gliomas. We previously investigated IDH1/2 and TP53 mutations via Sanger sequencing for adult supratentorial gliomas and reported that PCR-based sequence analysis classified gliomas into three genetic subgroups that have a strong association with patient prognosis: IDH mutant gliomas without TP53 mutations, IDH and TP53 mutant gliomas, and IDH wild-type gliomas. Furthermore, this analysis had a strong association with patient prognosis...
November 11, 2016: Journal of Neuro-oncology
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