Read by QxMD icon Read


Johannes Knipps, Kerim Beseoglu, Marcel Kamp, Igor Fischer, Joerg Felsberg, Lisa M Neumann, Hans-Jakob Steiger, Jan F Cornelius
OBJECTIVE: To compare fluorescence intensity of tumor specimens, as measured by a fluorescence-guided surgery microscope and a spectrometer, to evaluate tumor infiltration of dura mater around meningiomas with help of these 2 different 5-aminolevulinic acid (5-ALA)-based fluorescence tools, and to correlate fluorescence intensity with histopathologic data. MATERIAL AND METHODS: In a clinical series, meningiomas were resected by 5-ALA fluorescence-guided surgery...
December 2017: World Neurosurgery
Luckchai Phonwijit, Cheewin Khawprapa, Bunpot Sitthinamsuwan
OBJECTIVE: Atypical meningioma has a higher recurrence rate than benign meningioma. The mainstay of treatment is surgery with or without radiation therapy (RT). The objective of this study was to investigate progression-free survival (PFS) and factors associated with postoperative recurrence in patients with atypical meningioma. METHODS: Patients with diagnoses of atypical menigioma who underwent surgery at Siriraj Hospital during the 2004 to 2014 study period were included...
November 2017: World Neurosurgery
Krishnamurthy B Holeppagol, Biswaranjan N Nayak, Ram Kumar K Goyal, Arunkumar K Kumar, Prafulla K Sahoo, Debabrat Biswal
BACKGROUND: Calvarial tuberculosis (TB) with intracranial tuberculoma and skin involvement is rare condition even in endemic regions. CASE PRESENTATION: A 43-year-old man presented with a generalized seizure, altered mental state, scalp swelling, and pus-discharging sinus over the scalp. Magnetic resonance imaging of the brain indicated a conflicting diagnosis of anaplastic meningiomas and chronic osteomyelitis with intracranial extension. Débridement and drainage of intracranial pus was performed...
February 2017: World Neurosurgery
Anastasia Zikou, George A Alexiou, Anna Goussia, Paraskevi Kosta, Vasileios Xydis, Spyridon Voulgaris, Athanasios P Kyritsis, Maria I Argyropoulou
PURPOSE: We prospectively investigated the relationship between diffusion tensor imaging (DTI), dynamic susceptibility perfusion (DSP) MRI metrics and grade, subtype and Ki-67 labelling index of meningiomas. MATERIALS AND ΜETHODS: Thirty-nine patients operated for meningioma were included in the study. DTI and DSP were performed within a week prior to surgical excision. Lesion/normal (L/N) tissue ratios and peritumoral area/normal tissue (P/N) ratios were calculated for the apparent diffusion coefficient (ADC), fractional anisotropy (FA) and relative cerebral blood volume (rCBV)...
July 2016: Clinical Neurology and Neurosurgery
Hilda Lomelí, Jorge Castillo-Robles
Mammalian SWI/SNF or BAF chromatin-remodeling complexes are polymorphic assemblies of homologous subunit families that remodel nucleosomes. BAF57 is a subunit of the BAF complexes; it is encoded only in higher eukaryotes and is present in all mammalian assemblies. Its main structural feature is a high-mobility group domain, the DNA-binding properties of which suggest that BAF57 may play topological roles as the BAF complex enters or exits the nucleosome. BAF57 displays specific interactions with a number of proteins outside the BAF complex...
June 2016: FEBS Letters
Qing Lan, Qing Zhu, Ailin Chen, Ju Yu, Shihai Liu
OBJECTIVE: Modify the pterional approach for intracranial aneurysms clipping with minimally invasive concept to reduce the risk of iatrogenic surgical trauma. METHODS: A 4.0 cm skin incision was made along the temporal hairline and centered on the pterion, temporal muscle was incised along the sylvian fissure.A bone flap with 2.0 to 2.5 cm in diameter was milled after a bone hole was drilled just on the sphenoid ridge, which was drilled off as needed then.Aneurysms were exposed after dissection of sylvian fissure and cistern, as well as cerebrospinal fluid releasing...
October 20, 2015: Zhonghua Yi Xue za Zhi [Chinese medical journal]
Y I Zhang, Wei-Qiang Teng, Xiao-Ping Chen, Jian Wu
Certain nasal neoplasms, such as ectopic menigioma, present as nasal polyps, together with similar symptoms. The present study reports the diagnosis and treatment of ectopic meningioma in the bilateral nasal olfactory cleft in order to improve the diagnosis and treatment of ectopic meningioma in the nasal cavity. By retrospectively analyzing the clinical data and reviewing the associated literature, a detailed introduction to the clinical manifestation, diagnosis and treatment of ectopic meningioma of the nasal cavity was ascertained...
April 2015: Oncology Letters
A Kataki, V Skandami, N Memos, M Nikolopoulou, V Oikonomou, A Androulis, M M Konstadoulakis, C G Zografos
AIM: The present study aims to compare the host immune responses induced by benign (meningiomas) and malignant (gliomas) brain tumors. METHODS: Peripheral blood samples from 8 meningioma and 7 glioma patients collected pre- and post operatively were assessed for cell-mediated immunity, humoral immunity and IL-6, IL-8 and TNF-a expression. Apoptosis and necrosis of circulating lymphocytes and monocytes were evaluated by Annexin/PI, while DNA analysis was applied to trace circulating cells with an abnormal DNA content...
March 2014: Journal of Neurosurgical Sciences
Hoon Kim, Ik-Seong Park, Kwang Wook Jo
Hemangioblastomas are sporadic tumors found in the cerebellum or spinal cord. Supratentorial hemangioblastomas are rare, and those with meningeal involvement are extremely rare and have been reported in only approximately 130 patients. Here, we report the case of a 51-year-old female patient with supratentorial meningeal hemangioblastoma detected 5 years after surgical resection of an infratentorial hemangioblastoma associated with von Hippel-Lindau disease. Patients with von Hippel-Lindau syndrome are at risk for developing multiple hemangioblastomas, with new tumor formation and growth and possible meningeal infiltration...
November 2013: Journal of Korean Neurosurgical Society
Thomas M Hsieh, Yi-Min Liu, Chun-Chih Liao, Furen Xiao, I-Jen Chiang, Jau-Min Wong
BACKGROUND: In recent years, magnetic resonance imaging (MRI) has become important in brain tumor diagnosis. Using this modality, physicians can locate specific pathologies by analyzing differences in tissue character presented in different types of MR images.This paper uses an algorithm integrating fuzzy-c-mean (FCM) and region growing techniques for automated tumor image segmentation from patients with menigioma. Only non-contrasted T1 and T2 -weighted MR images are included in the analysis...
2011: BMC Medical Informatics and Decision Making
M Mnejja, B Hammami, L Bougacha, N Kolsi, H Mnif, A Chakroun, I Charfeddine, T Boudawara, A Ghorbel
INTRODUCTION: Primary meningiomas of the sinonasal tract are rare tumors. Their positive diagnosis is difficult to establish. From one case observation, we report the clinical features, the diagnosis difficulties and the therapeutic modalities of primary meningioma of the sinonasal tract. CASE REPORT: A seventeen-year-old girl consulted for a left unilateral nasal obstruction with progressive evolution without episodes of epistaxis, smell disorder or headaches over a year...
February 2012: European Annals of Otorhinolaryngology, Head and Neck Diseases
Yoshinori Takeuchi, Yumi Ohnishi, Satoru Matsunaga, Hiroyuki Nakayama, Koji Uetsuka
A menigioma with polygonal granular cell proliferation in an 11-year and 8-month-old male Chihuahua is described. The tumor was observed under the dura matter of the right cerebrum. Microscopically, the tumor consisted of solid growth foci of small- or large- sized polygonal cells, with pale-stained nuclei, prominent nucleoli, and fine granular to foamy eosinophilic cytoplasm. Some of the proliferating cells contained variable amounts of cytoplasmic PAS-positive granules. Immunohistochemical analysis revealed that neoplastic cells were positive for vimentin and S-100 protein...
May 2008: Journal of Veterinary Medical Science
I Erol Sandalcioglu, Anja Hunold, Oliver Müller, Hischam Bassiouni, Dietmar Stolke, Siamak Asgari
This study was undertaken to analyze the functional outcome of surgically treated spinal meningiomas and to determine factors for surgical morbidity. Between January 1990 and December 2006 a total of 131 patients underwent surgical resection of a spinal menigioma. There were 114 (87%) female and 17 (13%) male patients. Age ranged from 17 to 88 years (mean 69 years). The mean follow-up period was 61 months (range 1-116 months) including a complete neurological examination and postoperative MRI studies. The pre- and postoperative neurological state was graded according to the Frankel Scale...
August 2008: European Spine Journal
Ajay Niranjan, Glenn T Gobbel, Douglas Kondziolka, L Dade Lunsford
Advances in neuroimaging, stereotactic techniques, and robotic technology in the last decade have significantly expanded the applications of radiosurgery. Radiosurgery has become a preferred management modality for many intracranial tumors such as schwannomas, menigiomas and metastatic tumors. While indications of radiosurgery continue to expand, further investigations are critical to understand the mechanism of biological response of CNS tissues to radiation as well as the potential of long-term adverse effects...
2007: Progress in Neurological Surgery
F D Vrionis, J H Robertson, G Gardner, C B Heilman
Meningiomas involving the temporal bone may originate from arachnoid cell nests present within the temporal bone (intratemporal), but more frequently originate from arachnoid cell nests of the posterior or middle cranial fossa with secondary invasion of the TB (extratemporal). In this study, we retrospectively reviewed the charts of 13 patients with meningiomas involving the temporal bone who underwent surgery. Tumors of the posterior fossa with only temporal bone hyperostosis, but without invasion, were excluded...
1999: Skull Base Surgery
Mirjana Nagulić, Ljiljana Tukić, Srbislav Ilić, Marko Marković
BACKGROUND: Intracranial meningioma is rerely reported in the patients treated for Hodgkin's disease (HD), known to mainly occur in the area of radiation therapy. CASE REPORT: A 26-year-old woman with HD, and intracranial meningioma following the delivery, was presented. As we knew, a similar case had not been reported in the literature before. Three years prior the surgery for intracranial tumor, the patient had been started to be treated for HD of neoplasm stage I (NS I) type, by the use of the standard (bleomycin, etoposide, doxorubicin, cyclophosphamide, vincristine, procarbazine, prednisone) BEA-COPP protocol...
March 2006: Vojnosanitetski Pregled. Military-medical and Pharmaceutical Review
Stefan Dazert, Christoph Aletsee, Dominik Brors, Robert Mlynski, Holger Sudhoff, Henning Hildmann, Jan Helms
The study was performed to identify the incidence and histology of rare tumors with growth restricted to the internal auditory canal (IAC) that are different from vestibular schwannoma (VS). Furthermore, the question was addressed whether a preoperative diagnosis would be possible in these cases. A series of 351 patients that were operated on for IAC tumors through a transtemporal or translabyrinthine approach was investigated retrospectively. Cases with a tumor entity other than VS were analyzed for symptoms, radiological diagnosis, intraoperative findings and postoperative histolopatology to determine if a differential diagnosis to the common VS can be established prior to surgery...
July 2005: European Archives of Oto-rhino-laryngology
Zenebe Gedlie Damtie
Intracranial meningiomas usually develop intradurally with in the confines of the skull. Meningiomas originating in an extradural location are rare. A woman of 69 years had a hard mass located in the left parietal region. The neurological examination and laboratory data were with in normal limits. Plain skull X-rays revealed hyperostotic changes. The meningioma was removed in bloc. And histologically, it was found to be transitional type of menigioma.
January 2004: Ethiopian Medical Journal
No abstract text is available yet for this article.
May 12, 1962: Nature
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"