9,814 results match your criteria Imaging in Spinal Meningioma

Peritumoral Brain Edema in Meningiomas May Be Related to Glymphatic Dysfunction.

Front Neurosci 2021 22;15:674898. Epub 2021 Apr 22.

Department of Radiology, University of North Carolina School of Medicine, Chapel Hill, NC, United States.

The pathogenesis of peritumoral brain edema (PTBE) in meningiomas remains unclear. The glymphatic system is recently recognized as a pathway for waste clearance and maintaining fluid balance in the brain parenchymal interstitium. We aimed to investigate if the PTBE volume of meningiomas correlates with their glymphatic function. Read More

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Whole-brain 3D MR fingerprinting brain imaging: clinical validation and feasibility to patients with meningioma.

MAGMA 2021 May 4. Epub 2021 May 4.

Department of Radiology, Mayo Clinic, Rochester, MN, USA.

Purpose: MR fingerprinting (MRF) is a MR technique that allows assessment of tissue relaxation times. The purpose of this study is to evaluate the clinical application of this technique in patients with meningioma.

Materials And Methods: A whole-brain 3D isotropic 1mm acquisition under a 3. Read More

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Fluorescence image-guided resection of intracranial meningioma: an experimental in vivo study on nude mice.

Ann Anat 2021 Apr 30;237:151752. Epub 2021 Apr 30.

Klinik für Neurochirurgie, Universitätsklinikum des Saarlandes, Homburg, Germany.

Introduction: The use of photodynamic agents in malignant cranial tumor surgery is quite common. For example five-aminolevulinic acid (5-ALA)-induced porphyrins in malignant gliomas are potent photosensitizers. Until today there is no comparable selective fluorescent substance available for meningiomas. Read More

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Angiomatous Meningioma in the Craniocervical Junction.

Case Rep Orthop 2021 10;2021:6651160. Epub 2021 Apr 10.

Department of Orthopaedic Surgery, Gunma University Graduate School of Medicine, 3-39-22, Showa, Maebashi, Gunma 371-8511, Japan.

Introduction: Spinal angiomatous meningioma arising in the craniocervical junction has not been reported. . A 68-year-old man presented to our hospital with pain in the back and left leg. Read More

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Intraventricular meningioma admixed with choroid plexus papilloma: a rare case report with review of literature.

Int J Clin Exp Pathol 2021 15;14(4):545-550. Epub 2021 Apr 15.

Department of Pathology, Kyung Hee University Hospital, College of Medicine, Kyung Hee University Seoul, Republic of Korea.

A 42-year-old male presented with a history of headaches for the previous 2 weeks. Magnetic resonance imaging of the brain showed a 3 cm-sized well-defined, enhancing mass in the atrium of the right lateral ventricle. The tumor comprised two heterogeneous components: approximately one-third of the tumor exhibited complex and delicate papillary fibrovascular cores lined with uniform cuboidal-to-columnar epithelial cells, whereas the remaining part was seen as a solid sheet comprising ovoid-to-spindle cells with plump cytoplasm, which occasionally had a whorling pattern. Read More

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Use of PET Imaging in Neuro-Oncological Surgery.

Cancers (Basel) 2021 Apr 26;13(9). Epub 2021 Apr 26.

Department of Neurosurgery, Sana Kliniken Duisburg, 47055 Duisburg, Germany.

This review provides an overview of current applications and perspectives of PET imaging in neuro-oncological surgery. The past and future of PET imaging in the management of patients with glioma and brain metastases are elucidated with an emphasis on amino acid tracers, such as -(2-[F]fluoroethyl)-L-tyrosine (F-FET). The thematic scope includes surgical resection planning, prognostication, non-invasive prediction of molecular tumor characteristics, depiction of intratumoral heterogeneity, response assessment, differentiation between tumor progression and treatment-related changes, and emerging new tracers. Read More

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Eye Tumors in Childhood as First Sign of Tumor Predisposition Syndromes: Insights from an Observational Study Conducted in Germany and Austria.

Cancers (Basel) 2021 Apr 14;13(8). Epub 2021 Apr 14.

Institute of Human Genetics, Medical Faculty, University Duisburg-Essen, 45122 Essen, Germany.

Retinoblastoma and other eye tumors in childhood are rare diseases. Many eye tumors are the first signs of a genetic tumor predisposition syndrome and the affected children carry a higher risk of developing other cancers later in life. Clinical and genetic data of all children with eye tumors diagnosed between 2013-2018 in Germany and Austria were collected in a multicenter prospective observational study. Read More

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[Histological profile and progression of intraspinal tumors after surgery].

Pan Afr Med J 2021 4;38:128. Epub 2021 Feb 4.

Service de Neurochirurgie du Centre Hospitalier Universitaire Yalgado Ouédraogo de Ouagadougou, Ouagadougou, Burkina Faso.

Intraspinal tumors are uncommon. Positive diagnosis is based on medical imaging exams, in particular MRI. Anatomopathological examination allows for definitive diagnosis. Read More

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[Extra-axial chordoid meningioma: a case report].

Pan Afr Med J 2021 4;38:123. Epub 2021 Feb 4.

Service de Neurochirurgie, Centre Hospitalier Universitaire Mohammed VI, Oujda, Maroc.

This study reports the case of a 45-year-old female patient who underwent brain CT scan which fortuitously revealed de novo lesion. She was diagnosed with left isodense intradiploid lesion in the pterional region with bone lysis uniformly enhancing after injection of contrast medium. Magnetic resonance imaging showed T1-weighted hypointense lesion, spontaneously hyperintense signal on T2-weighted images and FLAIR images, strongly enhancing after gadolinium injection. Read More

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Comparison of diagnostic value of 68 Ga-DOTATOC PET/MRI and standalone MRI for the detection of intracranial meningiomas.

Sci Rep 2021 Apr 27;11(1):9064. Epub 2021 Apr 27.

Department of Radiology, Charité, Charitéplatz 1, 10117, Berlin, Germany.

To evaluate the diagnostic performance of magnetic resonance imaging (MRI) alone in comparison to positron emission tomography/ magnetic resonance imaging (PET/MRI) in patients with meningiomas. 57 patients with a total of 112 meningiomas of the brain were included. PET/MRI, including a fully diagnostic contrast enhanced MRI and PET, were acquired. Read More

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How to predict the consistency and vascularity of meningiomas by MRI: an institutional experience.

Neurol Res 2021 Apr 27:1-7. Epub 2021 Apr 27.

Department of Neurosurgery, Medical University of Vienna, Vienna, Austria.

: In surgery for meningiomas tumor location and extension is currently the only MRI characteristic used to predict the feasibility and difficulty of the resection. Key surgical tumor characteristics such as consistency and vascularity remain obscured until the tumor is exposed. We therefore aimed to identify MRI sequences able to predict these crucial meningioma features. Read More

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Radiation-induced brain injury in patients with meningioma treated with proton or photon therapy.

J Neurooncol 2021 Apr 22. Epub 2021 Apr 22.

Department of Radiation Oncology, University of Washington, 1959 NE Pacific Street, Seattle, WA, 98195, USA.

Introduction: Radiation therapy is often used to treat meningioma with adverse features or when unresectable. Proton therapy has advantages over photon therapy in reducing integral dose to the brain. This study compared the incidence of radiological and clinical adverse events after photon versus proton therapy in the treatment of meningioma. Read More

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The growth rate and clinical outcomes of radiation induced meningioma undergoing treatment or active monitoring.

J Neurooncol 2021 Apr 22. Epub 2021 Apr 22.

Institute of Systems, Molecular and Integrative Biology, University of Liverpool, Liverpool, UK.

Introduction: Radiation induced meningioma (RIM) incidence is increasing in line with improved childhood cancer survival. No optimal management strategy consensus exists. This study aimed to delineate meningioma growth rates from tumor discovery and correlate with clinical outcomes. Read More

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Aggressive Progression of a WHO Grade I Meningioma of the Posterior Clinoid Process: An Illustration of the Risks Associated With Observation of Skull Base Meningiomas.

Cureus 2021 Mar 19;13(3):e14005. Epub 2021 Mar 19.

Nerosurgery, Prince of Wales Private Hospital, Sydney, AUS.

Benign, small, and asymptomatic World Health Organization grade I meningiomas are usually managed expectantly with surveillance imaging with the assumption that they are predictably slowing growing. In this paper, we report the case of an incidentally discovered small, right-sided posterior clinoid meningioma in a 53-year-old female. The tumor was managed conservatively but an annual surveillance magnetic resonance imaging demonstrated that the meningioma had an unexpected significant growth impinging on the brainstem, requiring surgical resection and radiosurgery for residual tumor. Read More

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Circumferential intradural meningioma of the thoracic spine: Case report and literature review.

Surg Neurol Int 2021 24;12:120. Epub 2021 Mar 24.

Department of Neurosurgery, Salford Royal NHS Foundation Trust, Salford, United Kingdom.

Background: Meningiomas are common intradural extramedullary spinal tumors with a predilection for the thoracic spine. They are mostly benign (90%), with only a few showing malignant potential. However, circumferential intradural meningiomas surrounding the spinal cord are exceptionally rare. Read More

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Myxofibrosarcoma: Another mimicker of meningioma.

Neurocirugia (Astur) 2021 Apr 16. Epub 2021 Apr 16.

Department of Radiology, Faculty of Medical Sciences, State University of Campinas (UNICAMP), Campinas, SP, Brazil. Electronic address:

Primary intracranial malignant fibrous histiocytoma (MFH), or myxofibrosarcoma, is an extremely rare condition, with only a few cases reported in the literature. We report a case of a dural-based myxofibrosarcoma in a previously healthy 42-year-old man that was initially presumed to be an atypical meningioma. The findings based on conventional and advanced magnetic resonance sequences, including diffusion-weighted imaging, perfusion weighted imaging and proton magnetic resonance spectroscopy, as well as histopathological aspects, are discussed. Read More

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Investigating DWI changes in white matter of meningioma patients treated with proton therapy.

Phys Med 2021 Apr 16;84:72-79. Epub 2021 Apr 16.

Department of Electronics, Information and Bioengineering, Politecnico di Milano, Piazza Leonardo da Vinci 32, 20133 Milan, Italy. Electronic address:

Purpose: To evaluate changes in diffusion and perfusion-related properties of white matter (WM) induced by proton therapy, which is capable of a greater dose sparing to organs at risk with respect to conventional X-ray radiotherapy, and to eventually expose early manifestations of delayed neuro-toxicities.

Methods: Apparent diffusion coefficient (ADC) and IVIM parameters (D, D* and f) were estimated from diffusion-weighted MRI (DWI) in 46 patients affected by meningioma and treated with proton therapy. The impact on changes in diffusion and perfusion-related WM properties of dose and time, as well as the influence of demographic and pre-treatment clinical information, were investigated through linear mixed-effects models. Read More

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Paraplegia due to spinal meningioma during the third trimester of pregnancy: case report and literature review.

Spinal Cord Ser Cases 2021 Apr 15;7(1):31. Epub 2021 Apr 15.

Clinical Epidemilogy, Anesthesiolgy, Cúcuta, Norte Santander, Colombia.

Introduction: Spinal meningiomas represent 25-45% of intradural spinal tumors and ~2% of meningiomas of the central nervous system (CNS), and their occurrence during pregnancy is unusual. We present an updated literature review.

Case Report: A 36-year-old woman, at 32. Read More

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A new method for quantification and 3D visualization of brain tumor adhesion using slip interface imaging in patients with meningiomas.

Eur Radiol 2021 Apr 14. Epub 2021 Apr 14.

Department of Radiology, Mayo Clinic, 200 First St SW, Opus 2-149, Rochester, MN, 55905, USA.

Objectives: To develop an objective quantitative method to characterize and visualize meningioma-brain adhesion using MR elastography (MRE)-based slip interface imaging (SII).

Methods: This retrospective study included 47 meningiomas (training dataset: n = 35; testing dataset: n = 12) with MRE/SII examinations. Normalized octahedral shear strain (NOSS) values were calculated from the acquired MRE displacement data. Read More

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Ocular symptoms as the initial clinical manifestations in patients with extraocular tumors.

Ann Transl Med 2021 Mar;9(6):497

Joint Shantou International Eye Center of Shantou University and The Chinese University of Hong Kong, Shantou, China.

Background: Due to the variety of clinical presentation, some tumors may be concealed and easily misdiagnosed, leading to delays in management. We report a series of patients who initially presented to an Ophthalmic Clinic with ocular symptoms and were subsequently diagnosed with extraocular tumors.

Methods: Patients who presented to the ophthalmic outpatient clinic at the Joint Shantou International Eye Center with ocular symptoms between April 2013 and December 2019 and were subsequently diagnosed with intracranial or systemic tumors were reviewed retrospectively. Read More

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Surveillance for subsequent neoplasms of the CNS for childhood, adolescent, and young adult cancer survivors: a systematic review and recommendations from the International Late Effects of Childhood Cancer Guideline Harmonization Group.

Lancet Oncol 2021 05 9;22(5):e196-e206. Epub 2021 Apr 9.

Princess Máxima Center for Pediatric Oncology, Utrecht, Netherlands.

Exposure to cranial radiotherapy is associated with an increased risk of subsequent CNS neoplasms among childhood, adolescent, and young adult (CAYA) cancer survivors. Surveillance for subsequent neoplasms can translate into early diagnoses and interventions that could improve cancer survivors' health and quality of life. The practice guideline presented here by the International Late Effects of Childhood Cancer Guideline Harmonization Group was developed with an evidence-based method that entailed the gathering and appraisal of published evidence associated with subsequent CNS neoplasms among CAYA cancer survivors. Read More

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Utility of multiparametric pre-operative magnetic resonance imaging in differentiation of chordoid meningioma from the other histopathological subtypes of meningioma-a retrospective study.

Neuroradiology 2021 Apr 10. Epub 2021 Apr 10.

Department of Neuropathology, National Institute of Mental Health and Neurosciences, Bengaluru, Karnataka, 560029, India.

Purpose: To determine the magnetic resonance imaging (MRI) features which could pre-operatively differentiate chordoid meningioma (CM) from other histopathological subtypes of meningioma.

Methods: Retrospective analysis of pre-operative MRI of cases with histopathologically confirmed diagnosis of meningioma during the last 5 years at our institute was done. T1W, T2W, FLAIR sequences, and post-contrast enhancement were evaluated on a qualitative scale. Read More

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Unraveling a cephalalgic quagmire from a cavern to a cave.

J Postgrad Med 2021 Apr-Jun;67(2):96-99

Department of Neurosurgery, Chettinad Academy of Research and Education, Chennai, Tamil Nadu, India.

Headache in women in their late forties can be primary or secondary. We report a 48-year-old female with chronic slowly progressive left temporal headache for 1 year. She also had ipsilateral eye pain and facial numbness for 1 month, with restricted abduction in the left eye and diplopia. Read More

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Posterior fossa extra-axial variations of medulloblastoma: a pictorial review as a primer for radiologists.

Insights Imaging 2021 Apr 6;12(1):43. Epub 2021 Apr 6.

Neurosurgery Department, Imam Abdulrahman Bin Faisal University, King Fahd Hospital of the University, AlKhobar City, Eastern Province, Saudi Arabia.

Manifestations of an atypical variant of medulloblastoma of the posterior fossa in extra-axial locations have been reported, and key questions concerning its interpretation have been raised previously. This review illustrated the clinico-radiological and histopathological features of the posterior fossa extra-axial medulloblastoma and described possible management strategies. We thoroughly reviewed all atypical anatomical locations of medulloblastoma reported within the posterior fossa and extra-axial spaces. Read More

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Application of magnetic resonance fingerprinting to differentiate grade I transitional and fibrous meningiomas from meningothelial meningiomas.

Quant Imaging Med Surg 2021 Apr;11(4):1447-1457

Department of Medical Imaging, Zhengzhou University People's Hospital and Henan Provincial People's Hospital, Zhengzhou, China.

Background: The choice of surgical treatment for meningiomas is affected by the subtype and clinical characteristics. Therefore, an accurate preoperative diagnosis is essential. Current magnetic resonance imaging (MRI) technology is unable to distinguish between meningioma subtypes. Read More

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Pediatric age, posterior fossa meningioma.

Neurosciences (Riyadh) 2021 Apr;26(2):212-215

From the Department of Neurosurgery (Onen, Yüvrük), VM Maltepe Medicalpark Hospital, Department of Neurosurgery (Sarikaya, Naderi), Umraniye Teaching and Research Hospital, Istanbul, Turkey.

Meningiomas are benign, slow-growing tumors originating from arachnoid gap cells. They constitute 15%-20% of all intracranial tumors in adults and 04%-4% in the pediatric age group. Meningiomas in the posterior fossa in the pediatric period do not initially come to mind. Read More

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Approach to patient with unilateral optic disc edema and normal visual function.

J Neurol Sci 2021 May 24;424:117414. Epub 2021 Mar 24.

University of Toronto, Faculty of Medicine, Department of Ophthalmology and Vision Sciences, Toronto, Ontario, Canada; University of Toronto, Faculty of Medicine, Department of Medicine, Division of Neurology, Toronto, Ontario, Canada. Electronic address:

In patients with swollen optic nerve head and normal visual function, optic disc drusen (ODD) is the most common diagnosis. The best tests for detecting ODD are funds autofluorescence and enhanced-depth imaging ocular coherence tomography (EDIOCT). After ODD has been ruled out, asymmetric papilledema should be assumed to be the cause and MRI of the brain and orbits with contrast and venography should be performed in all patients. Read More

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Not all anosmia and fever was COVID-19 infection: a case report.

Pan Afr Med J 2020 23;37:371. Epub 2020 Dec 23.

Neurosurgery Department, Mohamed V Military Training Hospital, Rabat, Morocco.

COVID-19 pandemic touch all part of world to the date more than fifteen millions of patients are infected by virus including about 1,388,926 deaths (European Centre for Disease Prevention and Control an agency of the European Union). Morocco has put in place strict containment measures to control the disease and prevent the saturation of health systems. One of the great difficulties is to quickly identify asymptomatic and paucisymptomatic cases which function as an important vector of contagion. Read More

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