490 results match your criteria: "Meningioma Sphenoid Wing"

Objective: To devise a predictive model for estimating the requisite volume of the orbit in patients poised for resection of hyperostotic spheno-orbital meningiomas.

Material And Methods: The predictive regression model was conceived through the retrospective analysis of perioperative radiological data from 25 patients who initially underwent surgery at the Burdenko Neurosurgery Center for hyperostotic spheno-orbital meningiomas grade I. The model quality metrics were evaluated utilizing the performance library in the R programming language, including the Akaike Information Criterion, Bayesian Information Criterion, adjusted R-squared, Root Mean Squared Error, and Sigma.

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Spheno-orbital meningiomas (SOMs) are rare tumors that involve the sphenoid wing and orbit, leading to symptoms such as proptosis and vision loss. Their proximity to critical neurovascular structures complicates surgical resection, making management challenging. A systematic review of 22 paper series involving 1042 patients was conducted using PubMed and Scopus.

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Article Synopsis
  • Cortical blindness results from damage to the visual cortex, often due to strokes affecting the posterior cerebral arteries, which can occur during tentorial herniation.
  • A case study of a 40-year-old patient with a large right-sided sphenoidal meningioma showed postoperative complications, including headaches, coma, and eventual detection of cortical blindness lasting 1.5 years despite the absence of other neurological symptoms.
  • The case underscores the importance of recognizing risks associated with neurosurgery, as timely interventions may still lead to complications like irreversible ischemia, highlighting the need for patient awareness.
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Article Synopsis
  • The study focused on how visual acuity (VA) recovery affects quality of life in patients who underwent surgery for medial sphenoid wing meningioma (SWM).
  • Out of 153 patients, 35% had preoperative vision issues, with a key finding that those with impairments lasting 4 months or less had better postoperative VA improvements.
  • Results suggested that shorter preoperative visual impairment corresponds with better postoperative health and daily activity outcomes, which can assist in preoperative patient counseling and decision-making.
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Article Synopsis
  • - This study aims to determine the safe planning margins (PRV) for protecting optic nerves during CyberKnife stereotactic radiosurgery (SRS) due to potential motion of the nerves during treatment.
  • - MRI scans of healthy volunteers were used to assess optic nerve motion in various directions, leading to the calculation of two different PRV margins: a non-isotropic margin of 3mm in the left/right direction and an isotropic margin of 1mm when patients maintain a neutral gaze.
  • - The findings suggest that incorporating these PRV margins in CyberKnife treatment plans is crucial to minimize risks to the optic nerves, particularly in patients with perioptic lesions like sphenoid wing meningiomas.
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A 64-year-old woman with meningioma presented with left-sided lenticulostriatal ischemia following craniotomy and debulking of a sphenoid wing meningioma. For subsequent radiotherapy planning, an SSTR-targeted PET/CT using the novel ligand 18 F-SiTATE was performed 2.5 months thereafter.

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Impact of superficial middle cerebral vein compression on peritumoral brain edema of the sphenoid wing meningioma.

Clin Neurol Neurosurg

November 2024

Department of Neurosurgery, Institute of Medicine, University of Tsukuba, Tsukuba, Ibaraki, Japan. Electronic address:

Article Synopsis
  • The study investigates the relationship between SMCV compression and PTBE in patients with sphenoid wing meningiomas (SWMs) who underwent surgery.
  • Out of 31 patients, a significant number experienced PTBE, which correlated with the severity of SMCV compression observed in preoperative imaging.
  • The findings suggest that preserving the SMCV during surgery may enhance recovery outcomes, especially for patients with smaller tumors and more extensive PTBE.
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23-year review of spheno-orbital meningioma: clinical, radiological, and pathological insights from 100 cases.

BMC Ophthalmol

September 2024

Senior Department of Ophthalmology, 3rd Medical Center of Chinese PLA General Hospital, Beijing, 100080, China.

Background: Spheno-orbital meningioma (SOM) represents a unique variant of sphenoid wing meningiomas, distinguished by its propensity for bone infiltration and cranio-orbital involvement. SOM exhibits a considerable incidence of misdiagnosis and recurrence.

Purposes: To elucidate the clinical, radiological, and pathological characteristics of SOM.

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  • Endovascular embolization is used as a supportive treatment for meningioma surgery, but evaluating its effectiveness is complicated because MRI scans are done before embolization and after the tumor is removed.
  • Researchers conducted a study using preoperative MRI after embolization to better measure how effective the procedure was, grading the extent of tumor devascularization and analyzing differences based on tumor location and blood supply.
  • The study found that the degree of devascularization correlated well with the volumetric extent of embolization, providing a clearer and more quantifiable way to assess the effectiveness of embolization before surgery.
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  • The study investigates the relationship between the location and size of meningiomas (a type of brain tumor) and their clinical and biological characteristics, noting that the anatomic origin can be difficult to determine in larger tumors.
  • Researchers analyzed MRI scans and the World Health Organization (WHO) and molecularly Integrated Grades (IG) of meningiomas from adult patients to create a mapping atlas that correlates tumor location with grade.
  • Results indicate that benign tumors tend to cluster around the midline anterior skull base, while malignant ones are more common in areas like the falcine/parasagittal region, suggesting that molecular classification may provide more specific insights than traditional grading.
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Background And Importance: Spheno-orbital meningiomas (SOMs) pose a challenge to the skull base neurosurgeon because of their variable presentation and involvement of critical structures within the orbit. There is no consensus on optimal management of these patients and how to achieve maximal safe resection. The authors share an illustrative case with an accompanying video to demonstrate their aggressive approach to resect SOMs and their intraorbital components.

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Article Synopsis
  • * The approach to surgical removal of these tumors has shifted from traditional transcranial methods to a transnasal endoscopic approach, which offers benefits like minimizing damage to critical structures while excising both intranasal and intracranial components.
  • * A case study of a 50-year-old woman with visual impairment due to a transbasal meningioma illustrates successful surgical removal via an endoscopic technique, resulting in immediate improvement of her symptoms and confirmation of
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Angiographic Features of Meningiomas Predicting Extent of Preoperative Embolization.

Neurosurgery

August 2024

Department of Neurosurgery, Icahn School of Medicine at Mount Sinai, Mount Sinai Hospital, New York, New York, USA.

Article Synopsis
  • Preoperative embolization is an endovascular procedure that helps in the surgical removal of meningiomas but lacks a standardized system to measure its effectiveness during the procedure.
  • Researchers developed an angiographic grading system to help assess and report the level of tumor devascularization achieved through this process, involving a scale from 0 (no embolization) to 4 (complete embolization).
  • Analysis of data from 80 patients revealed that tumor location and the type of arterial feeders significantly influenced the success of embolization, with certain tumor types showing higher devascularization grades and a low complication rate of 2.5%.*
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Background/objective: Visual impairment affects 55%-80% of medial sphenoid wing meningiomas (mSWMs) patients, making optic nerve decompression a critical surgical goal. Complete resection often leads to better visual outcomes. However, involvement of critical neurovascular structures increases postoperative morbidity and mortality, with vascular injury reported in 18%-20% of cases.

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Background: Skull base meningiomas are intricately related to neuro-ophthalmic functions and have been related to direct influences on both the afferent and efferent visual pathways due to close contacts with crucial neurovascular structures. The present article reviews the neuro-ophthalmic presentations of these tumors, necessitating the need for precise anatomic information for the delivery of customized diagnostic and therapeutic approaches.

Methods: A literature review was conducted using PubMed and Scopus, focusing on terms related to skull base meningiomas and their neuro-ophthalmic impacts.

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Surgery stands as the primary treatment for spheno-orbital meningiomas, following a symptoms-oriented approach. We discussed the decision-making process behind surgical strategies through a review of medical records from 80 patients who underwent surgical resection at the University of Naples Federico II. Different surgical approaches were employed based on the tumor's location relative to the optic nerve's long axis, categorized into lateral (type I), medial (type II), and diffuse (type III).

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Meningeal solitary fibrous tumors (SFTs) are a rare central nervous system neoplastic process, resulting in frequent misdiagnosis as meningioma prior to pathologic analysis. Appropriate diagnosis is essential to lowering morbidity and mortality, as Grade II or III SFTs are aggressive neoplasms that possess metastatic potential. The existing data may suggest that intracranial SFTs primarily afflict those in their fourth through sixth decades of life.

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En plaque meningioma is a rare type of meningioma characterized by an infiltrative nature, sheet-like growth, and at times invading the bone. We report here a case of en plaque meningioma. The patient was a 66-year-old woman presenting with headache and painful bilateral proptosis.

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Article Synopsis
  • * A 70-year-old female presented with vision issues and underwent surgery after MRI revealed a tumor that was impacting key areas near her left optic nerve.
  • * Although total tumor removal wasn't possible during surgery, the patient had a successful operation without complications and later received radiation therapy that eliminated the remaining tumor, with no signs of recurrence after six months.
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Predictive factors of the postoperative proptosis recovery in surgery of spheno-orbital meningiomas.

Acta Neurochir (Wien)

April 2024

Assistance Publique - Hôpitaux de Marseille, AP-HM, Hôpital Universitaire Nord, Neurochirurgie Adulte, Chemin Des Bourrely, 13015, Marseille, France.

Objective: This study aimed to identify factors affecting proptosis recovery in spheno-orbital meningioma (SOM) surgery and assess functional and oncological outcomes.

Methods: Data from 32 consecutive SOM surgery cases (2002-2021) were analyzed. Clinical, radiological, operative, and oncological parameters were examined.

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Objective: Several pathologies either invade or arise within the orbit. These include meningiomas, schwannomas, and cavernous hemangiomas among others. Although several studies describing various approaches to the orbit are available, no study describes all cranio-orbital and orbitocranial approaches with clear, surgically oriented anatomical descriptions.

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Objective: The aim of this study was to evaluate the efficacy and safety of transorbital neuroendoscopic surgery (TONES) in the management of sphenoid wing meningiomas (SWMs) with cavernous sinus and orbital invasion.

Methods: The authors conducted a retrospective review of 32 patients with SWMs treated at Gazi University using TONES from October 2019 to May 2023. The study includes clinical applications to elucidate the endoscopic transorbital approach.

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A 78-year-old man presented with acute-onset left temporal pain, eyelid swelling, and double vision. Computed tomography (CT) demonstrated a left sphenoid wing mass with extra-osseous intra-orbital and intracranial extension, thought to be a typical sphenoid wing meningioma by the primary team. The patient was admitted for an urgent craniotomy, which was planned for the following day.

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Introduction: To study the rare and unusual causes of monocular elevation deficit.

Methods: Five patients presenting to us with diplopia and elevation deficit were thoroughly examined and were found to have monocular elevation deficit due to rare causes.

Observations: All five were found to have different underlying etiologies - iatrogenic, sphenoid wing meningioma, cysticercosis, sarcoidosis and mid brain infarct, and were managed appropriately.

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Unilateral proptosis can be a sign of a potential threat to vision or life. Here, we report a case of unilateral proptosis with bilateral asymmetrical compressive optic neuropathy. A 36-year-old Malaysian indigenous female presented with painless right-eye proptosis associated with progressive blurring of vision for the past month.

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