keyword
MENU ▼
Read by QxMD icon Read
search

Brain Benign Tumors

keyword
https://www.readbyqxmd.com/read/28081463/analysis-of-the-results-of-recurrent-intracranial-meningiomas-treated-with-re-radiosurgery
#1
Moinay Kim, Do Hee Lee, Hyun Jung Kim Rn, Young Hyun Cho, Jeong Hoon Kim, Do Hoon Kwon
OBJECTS: Meningioma is the most common intracranial neoplasm, comprising approximately 30% of all primary intracranial tumors (Claus et al., 2005) [1]. Treatment options include observation, microsurgical resection, stereotactic radiosurgery (SRS), and whole brain radiation therapy (WBRT). Gamma knife radiosurgery (GKRS) is a very effective treatment for intracranial meningiomas; previous studies showed the tumor control rate at 5-10 years of follow-up as 84.3%-100% in all cases (Feigl et al...
December 29, 2016: Clinical Neurology and Neurosurgery
https://www.readbyqxmd.com/read/28061500/collision-tumor-composed-of-meningioma-and-cavernoma
#2
Jens Weigel, Markus Neher, Michael Schrey, Peter H Wünsch, Hans-Herbert Steiner
A true collision tumor is a rare entity composed of two histologically distinct neoplasms coinciding in the same organ. This paper reports a unique case of cerebral collision tumor consisting of two benign components. On the first hand, meningioma which is usually a benign lesion arising from the meningothelial cell in the arachnoidal membrane. On the other, cerebral cavernoma which is a well-circumscribed, benign vascular hamartoma within the brain. To our knowledge, there is no previously documented case of cerebral collision tumor consisting of two benign components...
January 1, 2017: Journal of Korean Neurosurgical Society
https://www.readbyqxmd.com/read/28028445/long-standing-lumbosacral-dermoid-tumor-and-intracranial-fat-droplet-dissemination-a-case-report
#3
Ali Babashahi, Morteza Taheri, Arash Fattahi
BACKGROUND: Dermoid tumors are slow growing, benign CNS lesions. CASE DESCRIPTION: This case study concerns a 29-year-old female with a 6-year history of lower extremity paresthesias attributed to magnetic resonance (MR)/computed tomography (CT) documented intradural dermoid tumor that extended from L1 to S1. On MR, it was hypointense on T1, hyperintense on T2, and did not enhance with gadolinium. CT showed hyperdensity at the L1-L2 levels. The craniocervical MR imaging showed small hyperintense foci in the cisternal space favoring "fat dissemination...
2016: Surgical Neurology International
https://www.readbyqxmd.com/read/28002663/psychiatric-disease-preceding-intracranial-tumor-diagnosis-investigating-the-association
#4
Kathryn R Tringale, Bayard R Wilson, Brian Hirshman, Tianzan Zhou, David Folsom, Marc A Norman, Igor Grant, Clark C Chen, Bob S Carter
Objective: Here, we examine rates of intracranial tumor diagnoses in patients with and without comorbid psychiatric diagnoses to better understand how psychiatric disease may alter risk profiles for brain tumor diagnosis. Methods: We used a longitudinal version of the California Office of Statewide Health Planning and Development (OSHPD) database, which includes all inpatient admissions in California from 1995 to 2010. We examined patients with confirmed hospital admissions from 1997 to 2004...
December 15, 2016: Primary Care Companion to CNS Disorders
https://www.readbyqxmd.com/read/27989976/ultrasonography-monitoring-with-superb-microvascular-imaging-technique-in-brain-tumor-surgery
#5
Mami Ishikawa, Yasushi Ota, Mutsumi Nagai, Gen Kusaka, Yuichi Tanaka, Heiji Naritaka
BACKGROUND: Neuronavigation based on preoperative magnetic resonance imaging (MRI) has been developed as a useful tool to improve visibility of the surgical site in the operative field. Ultrasonography (US) monitoring has also been used as a reliable imaging technique, providing real-time information during neurosurgical operations. We combined the latest innovative imaging technique for detecting very low-flow components, Superb Microvascular Imaging (SMI), with US monitoring during brain tumor surgery...
October 27, 2016: World Neurosurgery
https://www.readbyqxmd.com/read/27917338/six-different-extremely-calcified-lesions-of-the-brain-brain-stones
#6
Yurdal Gezercan, Vedat Acik, Gökhan Çavuş, Ali Ihsan Ökten, Emre Bilgin, Hakan Millet, Burak Olmaz
BACKGROUND: This study aimed to extend clinical documentation of cerebral calculi by reporting six cases of cerebral calculi with distinct etiologies and localizations. METHODS: We evaluated the age, sex distribution, presenting symptoms, neurological examination findings, pathology results, and location of the calcifications of six patients with intracranial calcifications. RESULTS: Three of the six patients with brain stones were female (50%), and three were male (50%)...
2016: SpringerPlus
https://www.readbyqxmd.com/read/27916824/graphene-oxide-nanoribbons-induce-autophagic-vacuoles-in-neuroblastoma-cell-lines
#7
Emanuela Mari, Stefania Mardente, Emanuela Morgante, Marco Tafani, Emanuela Lococo, Flavia Fico, Federica Valentini, Alessandra Zicari
Since graphene nanoparticles are attracting increasing interest in relation to medical applications, it is important to understand their potential effects on humans. In the present study, we prepared graphene oxide (GO) nanoribbons by oxidative unzipping of single-wall carbon nanotubes (SWCNTs) and analyzed their toxicity in two human neuroblastoma cell lines. Neuroblastoma is the most common solid neoplasia in children. The hallmark of these tumors is the high number of different clinical variables, ranging from highly metastatic, rapid progression and resistance to therapy to spontaneous regression or change into benign ganglioneuromas...
November 29, 2016: International Journal of Molecular Sciences
https://www.readbyqxmd.com/read/27910945/thyroid-transcription-factor-1-distinguishes-subependymal-giant-cell-astrocytoma-from-its-mimics-and-supports-its-cell-origin-from-the-progenitor-cells-in-the-medial-ganglionic-eminence
#8
Jen-Fan Hang, Chih-Yi Hsu, Shih-Chieh Lin, Chih-Chun Wu, Han-Jui Lee, Donald Ming-Tak Ho
Subependymal giant cell astrocytoma is a benign brain tumor mostly associated with tuberous sclerosis complex. However, it may be misinterpreted as other high-grade brain tumors due to the presence of large tumor cells with conspicuous pleomorphism and occasional atypical features, such as tumor necrosis and endothelial proliferation. In this study, we first investigated thyroid transcription factor-1 (TTF-1) expression in a large series of subependymal giant cell astrocytomas and other histologic and locational mimics to validate the diagnostic utility of this marker...
December 2, 2016: Modern Pathology: An Official Journal of the United States and Canadian Academy of Pathology, Inc
https://www.readbyqxmd.com/read/27894339/the-identification-of-human-pituitary-adenoma-initiating-cells
#9
Branavan Manoranjan, Sujeivan Mahendram, Saleh A Almenawer, Chitra Venugopal, Nicole McFarlane, Robin Hallett, Thusyanth Vijayakumar, Almunder Algird, Naresh K Murty, Doron D Sommer, John P Provias, Kesava Reddy, Sheila K Singh
Classified as benign central nervous system (CNS) tumors, pituitary adenomas account for 10% of diagnosed intracranial neoplasms. Although surgery is often curative, patients with invasive macroadenomas continue to experience significant morbidity and are prone to tumor recurrence. Given the identification of human brain tumor-initiating cells (TICs) that initiate and maintain tumor growth while promoting disease progression and relapse in multiple CNS tumors, we investigated whether TICs also drive the growth of human pituitary adenomas...
November 28, 2016: Acta Neuropathologica Communications
https://www.readbyqxmd.com/read/27885632/glutamine-metabolism-in-gliomas
#10
Monika Szeliga, Jan Albrecht
By histological, morphological criteria, and malignancy, brain tumors are classified by WHO into grades I (most benign) to IV (highly malignant), and gliomas are the most frequently occurring class throughout the grades. Similar to peripheral tumors, the growth of glia-derived tumor cells largely depends on glutamine (Gln), which is vividly taken up by the cells, using mostly ASCT2 and SN1 as Gln carriers. Tumor growth-promoting effects of Gln are associated with its phosphate-activated glutaminase (GA) (specifically KGA)-mediated degradation to glutamate (Glu) and/or with its entry to the energy- and intermediate metabolite-generating pathways related to the tricarboxylic acid cycle...
2016: Advances in Neurobiology
https://www.readbyqxmd.com/read/27872484/co-occurrence-of-local-anisotropic-gradient-orientations-collage-a-new-radiomics-descriptor
#11
Prateek Prasanna, Pallavi Tiwari, Anant Madabhushi
In this paper, we introduce a new radiomic descriptor, Co-occurrence of Local Anisotropic Gradient Orientations (CoLlAGe) for capturing subtle differences between benign and pathologic phenotypes which may be visually indistinguishable on routine anatomic imaging. CoLlAGe seeks to capture and exploit local anisotropic differences in voxel-level gradient orientations to distinguish similar appearing phenotypes. CoLlAGe involves assigning every image voxel an entropy value associated with the co-occurrence matrix of gradient orientations computed around every voxel...
November 22, 2016: Scientific Reports
https://www.readbyqxmd.com/read/27867918/clinical-and-radiological-characteristics-of-angiomatous-meningiomas
#12
Juyoung Hwang, Doo-Sik Kong, Ho Jun Seol, Do-Hyun Nam, Jung-Il Lee, Jung Won Choi
BACKGROUND: Angiomatous meningioma is a rare histological subtype of meningioma. Therefore, this specific medical condition is rarely reviewed in the literature. In the present work, we report the clinical and radiological features with postoperative outcomes of angiomatous meningioma. METHODS: This retrospective study included the patients who were pathologically diagnosed with angiomatous meningioma after surgical resection between February 2010 and September 2015 in our institute...
October 2016: Brain Tumor Research and Treatment
https://www.readbyqxmd.com/read/27867912/central-neurocytoma-a-review-of-clinical-management-and-histopathologic-features
#13
REVIEW
Seung J Lee, Timothy T Bui, Cheng Hao Jacky Chen, Carlito Lagman, Lawrance K Chung, Sabrin Sidhu, David J Seo, William H Yong, Todd L Siegal, Minsu Kim, Isaac Yang
Central neurocytoma (CN) is a rare, benign brain tumor often located in the lateral ventricles. CN may cause obstructive hydrocephalus and manifest as signs of increased intracranial pressure. The goal of treatment for CN is a gross total resection (GTR), which often yields excellent prognosis with a very high rate of tumor control and survival. Adjuvant radiosurgery and radiotherapy may be considered to improve tumor control when GTR cannot be achieved. Chemotherapy is also not considered a primary treatment, but has been used as a salvage therapy...
October 2016: Brain Tumor Research and Treatment
https://www.readbyqxmd.com/read/27857859/emergency-decompressive-craniectomy-after-removal-of-convexity-meningiomas
#14
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/27847571/sclerosing-meningioma-radiological-and-clinical-characteristics-of-21-cases
#15
Ho Kang, Jin Wook Kim, Young-Bem Se, Yun-Sik Dho, Seung Hong Choi, Sung-Hye Park
OBJECTIVE: A rare subtype of meningioma, sclerosing meningioma is not included in the current World Health Organization classification of meningiomas and is classified into the category of other morphological variation subtypes. Sclerosing meningioma is often misdiagnosed to other non-benign meningioma or malignant neoplasm, so it is important to diagnose sclerosing type correctly. We analyzed the radiological and clinical characteristics of a series of sclerosing meningiomas. METHODS: Twenty-one patients who underwent surgery in one institute with a histopathologically proven sclerosing meningioma were included from 2006 to 2014...
November 2016: Journal of Korean Neurosurgical Society
https://www.readbyqxmd.com/read/27825903/radiosurgery-for-paragangliomas-of-the-head-and-neck-another-step-for-the-validation-of-a-treatment-paradigm
#16
Marcello Marchetti, Valentina Pinzi, Irene Tramacere, Livia Corinna Bianchi, Francesco Ghielmetti, Laura Fariselli
BACKGROUND: Paragangliomas are highly vascular and predominantly benign neoplasms that have traditionally been treated by surgery, embolization and/or external beam radiotherapy (EBRT). The aim of this study is to evaluate long-term local tumor control and safety of radiosurgery for the head and neck paragangliomas. METHODS: Data were obtained from prospectively maintained databases of patients affected by brain tumors treated with radiosurgery at our institution...
November 4, 2016: World Neurosurgery
https://www.readbyqxmd.com/read/27816187/neurothekeoma-in-the-middle-cranial-fossa-as-a-rare-location-case-report-and-literature-review
#17
E B Bulduk, A Aslan, Ö Öcal, A M Kaymaz
Neurothekeoma is a benign cutaneous nerve sheath tumor usually located in the head and neck region. To date, only a few cases of intracranial location have been reported in the literature. We report an extremely rare case of intracranial neurothekeoma located in the brain parenchyma of the middle cranial fossa. A 55-year-old female patient was operated on at our clinic for a right temporal cystic mass lesion with heterogenic contrast enhancement. Histologically, the tumor had a multinodular hypercellular appearance with a myxoid matrix, peripheral fibrosis, and sclerosis...
December 2016: Neuro-Chirurgie
https://www.readbyqxmd.com/read/27797139/tuberous-sclerosis-complex-from-molecular-biology-to-novel-therapeutic-approaches
#18
REVIEW
Katarzyna Switon, Katarzyna Kotulska, Aleksandra Janusz-Kaminska, Justyna Zmorzynska, Jacek Jaworski
Tuberous sclerosis complex (TSC) is a rare multi-system disorder, primary manifestations of which are benign tumors and lesions in various organs of the body, including the brain. TSC patients often suffer from epilepsy, mental retardation, and autism spectrum disorder (ASD). Therefore, TSC serves as a model of epilepsy, ASD, and tumorigenesis. TSC is caused by the lack of functional Tsc1-Tsc2 complex, which serves as a major cellular inhibitor of mammalian Target of Rapamycin Complex 1 (mTORC1). mTORC1 is a kinase controlling most of anabolic processes in eukaryotic cells...
October 31, 2016: IUBMB Life
https://www.readbyqxmd.com/read/27779153/cytohistological-correlation-in-pituitary-tumor-and-immunological-assessment-with-the-help-of-ki-67
#19
A Sen, C Das, M Mukhopadhyay, S Mukhopadhyay, S Deb, B Mukhopadhyay
BACKGROUND: Tumors of the pituitary gland and sellar region represent approximately 10-15% of all brain tumors. Pituitary adenoma (PA), the most common pathology of the pituitary gland, can be effectively subclassified only with the help of immunohistochemistry (IHC). This is important and needed for individual patient management. AIMS AND OBJECTIVES: The objective of the study was to analyze the importance of intraoperative imprint smear cytology and correlating with final histopathological diagnosis...
October 24, 2016: Journal of Postgraduate Medicine
https://www.readbyqxmd.com/read/27764145/the-relationship-between-parkinson-disease-and-brain-tumor-a-meta-analysis
#20
Rong Ye, Ting Shen, Yasi Jiang, Lingjia Xu, Xiaoli Si, Baorong Zhang
OBJECTIVE: Epidemiological studies have investigated the association between Parkinson disease (PD) occurrence and the risk of brain tumors, while the results remain controversial. We performed a meta-analysis to clarify the exact relationship between PD and brain tumors. METHODS: A systematic literature search was conducted using PubMed, Embase, ScienceDirect and CBM (China Biology Medicine Disc) before February 2016. Eligible studies were those that reported risk estimates of brain tumors among patients with PD or vice versa...
2016: PloS One
keyword
keyword
86531
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"