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trigeminal schwannoma

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https://www.readbyqxmd.com/read/27803960/fractionated-vs-single-fraction-stereotactic-radiotherapy-in-patients-with-vestibular-schwannoma-hearing-preservation-and-patients-self-reported-outcome-based-on-an-established-questionnaire
#1
Kerstin A Kessel, Hanna Fischer, Marco M E Vogel, Markus Oechsner, Henning Bier, Bernhard Meyer, Stephanie E Combs
BACKGROUND: Stereotactic radiotherapy (RT) has been established as a valid treatment alternative in patients with vestibular schwannoma (VS). There is ongoing controversy regarding the optimal fractionation. Hearing preservation may be the primary goal for patients with VS, followed by maintenance of quality of life (QoL). METHODS: From 2002 to 2015, 184 patients with VS were treated with radiosurgery (RS) or fractionated stereotactic radiotherapy (FSRT). A survey on current symptoms and QoL was conducted between February and June 2016...
November 1, 2016: Strahlentherapie und Onkologie: Organ der Deutschen Röntgengesellschaft ... [et Al]
https://www.readbyqxmd.com/read/27803834/surgical-approach-to-the-cavernous-sinus-for-a-trigeminal-schwannoma-resection-technical-note-and-case-report
#2
Riccardo Caruso, Alessandro Pesce, Venceslao Wierzbicki, Luigi Marrocco, Emanuele Piccione
We report a rare case of schwannoma of the lateral wall of the cavernous sinus, an exceedingly rare lesion affecting this anatomical district, and discuss salient aspects of the surgical approach to the cavernous sinus, which are traditionally considered technically challenging due to the high risk of postoperative morbidity and mortality related to the presence of the cranial nerves and internal carotid artery.
2016: Case Reports in Surgery
https://www.readbyqxmd.com/read/27777157/gamma-knife-radiosurgery-for-residual-and-recurrent-vestibular-schwannomas-after-previous-surgery-clinical-results-in-a-series-of-90-patients-and-review-of-the-literature
#3
Michele Bailo, Nicola Boari, Filippo Gagliardi, Alberto Franzin, Martina Piloni, Alfio Spina, Marco Gemma, Antonella Del Vecchio, Angelo Bolognesi, Pietro Mortini
OBJECT: Complete vestibular schwannomas (VS) removal is not always achievable without any risk of disabling postoperative complications, especially in terms of facial nerve function. Moreover, even after gross total removal a relevant rate of recurrence has been reported. The aim of this study is to validate Gamma Knife radiosurgery (GKRS) as an effective strategy to treat tumor's regrowth after previous surgery. METHODS: Ninety patients treated with GKRS for VS after previous microsurgery were included in the present study...
October 21, 2016: World Neurosurgery
https://www.readbyqxmd.com/read/27738538/neurofibromatosis-type-2-presenting-with-oculomotor-ophthalmoplegia-and-distal-myopathy
#4
Jessica Mani Penny Tevaraj, Evelyn Tai Li Min, Raja Azmi Mohd Noor, Azhany Yaakub, Wan Hazabbah Wan Hitam
Neurofibromatosis type 2 usually presents with bilateral acoustic schwannomas. We highlight the rare presentation of neurofibromatosis initially involving third nerve. A 23-year-old Malay female presented with left eye drooping of the upper lid and limitation of upward movement for 8 years. It was associated with right-sided body weakness, change in voice, and hearing disturbance in the right ear for the past 2 years. On examination, there was mild ptosis and limitation of movement superiorly in the left eye...
2016: Case Reports in Ophthalmological Medicine
https://www.readbyqxmd.com/read/27723656/jaw-immobilization-for-gamma-knife-surgery-in-patients-with-mandibular-lesions-a-newly-innovative-approach
#5
Constantin Tuleasca, Martin Broome, Pascal J Mosimann, Luis Schiappacasse, Michele Zeverino, Antoine Dorenlot, Jérôme Champoudry, Jean Régis, Marc Levivier
BACKGROUND: The purpose of our report is to describe an innovative system used for mandibular immobilization during Gamma Knife surgery (GKS) procedures. It is based on an approach originally developed in Marseille in extracranial lesions, close to or involving the mandible, which may imply a certain degree of movement during the therapeutic image acquisitions and/or GKS treatment. METHODS: The maxillofacial surgeon applied bone titanium self-tapping monocortical screws (4; 2 mm diameter, 10 mm length) between roots of the teeth in the fixed gingiva (upper and lower maxillae) the day before GKS (local anesthesia, 5-10 min time)...
2016: Stereotactic and Functional Neurosurgery
https://www.readbyqxmd.com/read/27702706/radiosurgery-for-secondary-trigeminal-neuralgia-revisiting-the-treatment-paradigm
#6
Srinivas Chivukula, Won Kim, Xiaoyi Zhuo, Stephen Tenn, Tania Kaprealian, Antonio DeSalles, Nader Pouratian
BACKGROUND: The mechanisms by which surgery and radiation elicit pain relief in trigeminal neuralgia (TN) secondary to mass lesions vary widely. We aimed to evaluate the outcomes of radiation to the nerve rather than to the lesion in the treatment of secondary TN. METHODS: We retrospectively reviewed all patients who underwent radiation at the University of California, Los Angeles for TN secondary to tumors. The Barrow Neurological Institute (BNI) pain score was used to evaluate pain outcomes...
October 1, 2016: World Neurosurgery
https://www.readbyqxmd.com/read/27695572/solid-cystic-trigeminal-schwannoma-with-intraorbital-extension-causing-proptosis-and-vision-loss
#7
Pankaj Gupta, Arvind Sharma, Jitendra Singh
Schwannomas are slowly growing, well capsulated, benign tumors. Involvement of vestibular nerve is most commonly followed by trigeminal nerve. Trigeminal schwannoma is rare entity, and cystic degeneration with intraorbital extension of trigeminal schwannoma is even rarer. These tumors occur in fourth and fifth decades of life and patients have variable presentation depending on which cranial compartment is involved. Orbital schwannoma usually presents with proptosis with or without vision loss. We are reporting such a rare case of solid cystic trigeminal schwannoma with intraorbital extension through superior orbital fissure that was removed surgically...
October 2016: Asian Journal of Neurosurgery
https://www.readbyqxmd.com/read/27667574/intracranial-angiomatoid-fibrous-histiocytoma-a-case-report-and-literature-review
#8
Mohammed A Alshareef, Zayed Almadidy, Tiffany Baker, Arie Perry, Cynthia T Welsh, William A Vandergrift
BACKGROUND: Angiomatoid fibrous histiocytoma (AFH) is a rare and low-grade soft tissue lesion that typically arises from subcutaneous and deep dermal tissue of extremities. The first case was reported in 1979 by Enzinger, and since has become known as a distinct entity. AFH has been increasingly reported in different organ systems, with rare reports of primary intracranial AFH. To date there have been 3 reports of intracranial AFH and one report of metastasis to the brain, most of which were in young adults...
September 22, 2016: World Neurosurgery
https://www.readbyqxmd.com/read/27613496/intrasellar-and-suprasellar-schwannoma-misdiagnosed-as-pituitary-macroadenoma-a%C3%A2-case-report-and-review-of-the-literature
#9
Jinsen Zhang, Shugang Xu, Qinglin Liu, Xueen Li, Deze Jia, Gang Li
BACKGROUND: Intracranial schwannomas usually arise from sensory nerves with a predilection for the trigeminal nerve and the vestibular component of the eighth cranial nerve (VIII). Schwannoma arising in the sella and extending into the suprasellar region is exceedingly rare and easily misdiagnosed as pituitary macroadenoma. Only 26 cases of intrasellar schwannomas have been reported in the literature. CASE DESCRIPTION: A patient with an intrasellar schwannoma and suprasellar extension was presurgically diagnosed as having pituitary macroadenoma...
September 6, 2016: World Neurosurgery
https://www.readbyqxmd.com/read/27535636/gamma-knife-radiosurgery-as-primary-treatment-for-large-vestibular-schwannomas-clinical-results-at-long-term-follow-up-in-a-series-of-59-patients
#10
Michele Bailo, Nicola Boari, Alberto Franzin, Filippo Gagliardi, Alfio Spina, Antonella Del Vecchio, Marco Gemma, Angelo Bolognesi, Pietro Mortini
BACKGROUND: Gamma Knife Radiosurgery (GKRS) represents a well-accepted treatment for small-medium vestibular schwannomas (VS), however, its application in larger VS is still controversial. METHODS: Among the 523 patients treated at our Institution for VS between 2001 and 2010, we included 59 patients harboring a VS larger than 25 mm, treated by GKRS as primary treatment, not affected by NF2, and with a clinical follow-up (FU) of at least 36 months. Five patients underwent ventriculo-peritoneal shunt (VPS) placement before radiosurgery...
August 12, 2016: World Neurosurgery
https://www.readbyqxmd.com/read/27527622/long-term-results-of-gamma-knife-stereotactic-radiosurgery-for-vestibular-schwannomas-in-patients-with-type-2-neurofibromatosis
#11
G Spatola, R Carron, C Delsanti, J-M Thomassin, P-H Roche, J Régis
INTRODUCTION: The aim of this study was to analyze the long-term results of Gamma-knife radiosurgery treatment of vestibular schwannomas in type 2 neurofibromatosis patients. MATERIALS AND METHODS: A cohort of 129 treatments for vestibular schwannomas in 103 patients was selected from a prospectively-maintained clinical database. Tumor control was assessed by volumetric analysis of the tumor at the last follow-up. Any need of a further procedure such as microsurgical removal or second treatment was regarded as a failure of tumor control...
August 12, 2016: Neuro-Chirurgie
https://www.readbyqxmd.com/read/27515152/clinically-significant-intratumoral-hemorrhage-in-patients-with-vestibular-schwannoma
#12
Matthew L Carlson, Nicole M Tombers, Colin L W Driscoll, Jamie J Van Gompel, John I Lane, Aditya Raghunathan, Kelly D Flemming, Michael J Link
OBJECTIVES: The frequency of intratumoral hemorrhage (ITH) in vestibular schwannoma (VS) remains undefined. METHODS: Retrospective case series of all patients diagnosed with hemorrhagic VS between 2003 and 2015 at a single tertiary academic skull base center. RESULTS: Five patients with ITH were evaluated, representing 0.4% of all newly diagnosed VS evaluated at the authors' center during this time. The median age at time of diagnosis was 66 years (range 39-83), four of five cases occurred in men, and all had sporadic unilateral tumors...
August 12, 2016: Laryngoscope
https://www.readbyqxmd.com/read/27513938/outcomes-in-patients-with-vestibular-schwannoma-after-subtotal-resection-and-adjuvant-radiosurgery
#13
Hesham Radwan, Mark Bruce Eisenberg, Jonathan Petrus Sandberg Knisely, Maged Mofied Ghaly, Michael Schulder
BACKGROUND: The debate continues with a limited number of publications describing outcomes in patients with vestibular schwannoma (VS) treated with planned subtotal resection (STR) plus stereotactic radiosurgery (SRS). Here we present our experience. METHODS: This is a retrospective review of 22 patients with VS Koos grade III and IV who were treated with STR followed by SRS. Tumor volumes, facial nerve function, hearing preservation, and the presence of trigeminal neuropathy were noted...
2016: Stereotactic and Functional Neurosurgery
https://www.readbyqxmd.com/read/27509962/clinical-outcomes-of-intracranial-nonvestibular-schwannomas-treated-with-linacbased-stereotactic-radiosurgery-and-radiotherapy
#14
Putipun Puataweepong, Mantana Dhanachai, Ake Hansasuta, Kriangsak Saetia, Somjai Dangprasert, Chomporn Sitathanee, Pornpan Yongvithisatid
BACKGROUND: Intracranial nonvestibular schwannomas arising from various cranial nerves excluding CN VIII are uncommon. Recently, stereotactic radiosurgery (SRS) and fractionated stereotactic radiotherapy (SRT) have been widely reported as effective treatment modalities for nonvestibular schwannomas. The purpose of this study was to study the long term clinical outcome for nonvestibular schwannomas treated with both XKnife and CyberKnife (CK) radiosurgery at one institution. MATERIALS AND METHODS: From 2004 to 2013, fiftytwo nonvestibular schwannoma patients were included in this study, 33 patients (63%) were treated with CK, and 19 (37%) were treated with XKnife...
2016: Asian Pacific Journal of Cancer Prevention: APJCP
https://www.readbyqxmd.com/read/27471891/stereotactic-radiosurgery-for-recurrent-vestibular-schwannoma-after-previous-resection
#15
Marshall J Huang, Hideyuki Kano, Seyed H Mousavi, Ajay Niranjan, Edward A Monaco, Yoshio Arai, John C Flickinger, L Dade Lunsford
OBJECTIVE The goal of this retrospective cohort study was to assess long-term outcomes in patients with vestibular schwannoma (VS) who underwent stereotactic radiosurgery (SRS) after initial microsurgical resection. METHODS From the authors' database of 1770 patients with VS, the authors retrospectively analyzed data from 173 Gamma Knife SRS procedures for VS after 1 (128 procedures) or multiple (45 procedures) microsurgical resections. The median length of the interval between the last resection and SRS was 42 months (range 2-329 months)...
July 29, 2016: Journal of Neurosurgery
https://www.readbyqxmd.com/read/27441164/multimodality-management-of-trigeminal-schwannomas
#16
Ajay Niranjan, Samuel Barnett, Vijay Anand, Siviero Agazzi
Patients presenting with trigeminal schwannomas require multimodality management by a skull base surgical team that can offer expertise in both transcranial and transnasal approaches as well as radiosurgical and microsurgical strategies. Improvement in neurologic symptoms, preservation of cranial nerve function, and control of mass effect are the primary goals of management for trigeminal schwannomas. Complete surgical resection is the treatment of choice but may not be possible in all cases. Radiosurgery is an option as primary management for small- to moderate-sized tumors and can be used for postoperative residuals or recurrences...
August 2016: Journal of Neurological Surgery. Part B, Skull Base
https://www.readbyqxmd.com/read/27330418/surgical-management-of-skull-base-tumors
#17
Leonardo Rangel-Castilla, Jonathan J Russin, Robert F Spetzler
AIM: To present a review of the contemporary surgical management of skull base tumors. BACKGROUND: Over the last two decades, the treatment of skull base tumors has evolved from observation, to partial resection combined with other therapy modalities, to gross total resection and no adjuvant treatment with good surgical results and excellent clinical outcomes. MATERIALS AND METHODS: The literature review of current surgical strategies and management of skull base tumors was performed and complemented with the experience of Barrow Neurological Institute...
July 2016: Reports of Practical Oncology and Radiotherapy
https://www.readbyqxmd.com/read/27041354/gamma-knife-radiosurgery-for-trigeminal-neuralgia-secondary-to-benign-lesions
#18
Kyung Rae Cho, Min Ho Lee, Yong Seok Im, Doo-Sik Kong, Ho Jun Seol, Do-Hyun Nam, Jung-Il Lee
BACKGROUND: Investigate the clinical outcomes of gamma knife radiosurgery (GKS) in patients with benign intracranial lesions and accompanying trigeminal neuralgia (TN). METHODS: From February 2002 to November 2011, 50 patients (11 males, 39 females) underwent GKS for intracranial lesions accompanied by TN. Pathological diagnoses included meningioma in 30 patients, vestibular schwannoma in 11, trigeminal schwannoma in 7, epidermoid cyst in 1, and arteriovenous malformation in 1...
April 4, 2016: Headache
https://www.readbyqxmd.com/read/26969360/rare-case-of-radiation-induced-trigeminal-schwannoma-occurring-in-a-long-term-glioblastoma-multiforme-survivor
#19
Mina Al Shalchi, Shaila Hussain, Selvaraj Giridharan, Erminia Albanese
Glioblastoma multiforme (GBM) is a high-grade primary brain tumour with a notably poor prognosis. Research demonstrates a median survival of just over 1 year following aggressive treatment. Long-term survival is notably rare. Cranial radiotherapy and postexcisional prophylactic treatment is associated with the development of second, histologically distinct tumours in rare cases. Radiation-induced intracranial schwannomas are uncommon, with only a small number of cranial nerve schwannoma cases reported in recent decades...
2016: BMJ Case Reports
https://www.readbyqxmd.com/read/26961715/fractionated-stereotactic-radiation-therapy-for-vestibular-schwannomas-dosimetric-factors-predictive-of-hearing-outcomes
#20
Nathan R Bennion, Ryan K Nowak, Elizabeth R Lyden, Robert B Thompson, Sicong Li, Chi Lin
PURPOSE: To determine dosimetric factors predictive of hearing loss in vestibular schwannoma (VS) patients treated with definitive fractionated stereotactic radiation therapy (FSRT), and to report tumor control, serviceable hearing preservation, and cranial nerve toxicities. METHODS AND MATERIALS: We identified 45 patients (29 men and 16 women) with unilateral sporadic VS, who underwent definitive FSRT. All patients had serviceable hearing prior to treatment, defined as Gardner-Robertson Class 1 or 2...
September 2016: Practical Radiation Oncology
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