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https://www.readbyqxmd.com/read/28650602/intraoperative-neurophysiological-monitoring-to-protect-the-facial-nerve-during-microsurgery-for-large-vestibular-schwannomas
#1
(no author information available yet)
OBJECTIVE: Microsurgery is the preferred treatment for large vestibular schwannomas (VSs). However, anatomical and functional preservation of the facial nerve (FN) remains a challenge during this surgery. The aim of this study was to determine whether it is beneficial to the preservation rates of the FN during microsurgical treatment of large VSs using intraoperative neurophysiological monitoring (IONM). METHODS: We retrospectively reviewed 53 patients with large VSs that underwent microsurgical resection via the retrosigmoid approach in our department during April 2009 to March 2016...
May 26, 2017: Neuro Endocrinology Letters
https://www.readbyqxmd.com/read/28648003/-curative-effect-analysis-of-15-cases-of-cervical-intra-and-extra-spinal-tumors-by-microsurgical-resection
#2
Y Han, X L Zheng, L Li, Z Q Jiang, F Y Lou, S J Zhang
Objective: To explore the curative effect of microsurgical treatment of cervical intra- and extra-spinal tumors. Methods: The clinical data of 15 patients with cervical intra-and extra-spinal tumors in Department of Neurosurgery, the First Affiliated Hospital of Bengbu Medical College from January 2013 to February 2017 were retrospectively analyzed. According to Shaw's tumor stage: 6 cases in stage Ⅰ, 5 cases in stage Ⅱ, 3 cases in stage Ⅲ, and 1 case in stage Ⅳ. About the surgical methods: 9 cases were treated via posterior median semi-laminectomy approach, of which were internal fixation in 2 cases, and via posterior median approach spinous process and vertebral plate complex orthotopic replantation to spinal canal plasty in 3 cases, other 3 cases were operated via anterior cervical approach, including internal fixation in 1 case...
June 20, 2017: Zhonghua Yi Xue za Zhi [Chinese medical journal]
https://www.readbyqxmd.com/read/28647663/management-of-residual-tumor-after-limited-subtotal-resection-of-large-vestibular-schwannomas-lessons-learned-and-a-rationale-for-specialized-care
#3
William R Copeland, Matthew L Carlson, Brian A Neff, Colin L W Driscoll, Michael J Link
BACKGROUND: In an era where subtotal resection (STR) is increasingly utilized, we have encountered a growing number of patients referred to our institution with limited resection of large vestibular schwannomas (VS), at times associated with grave complications. OBJECTIVE: We highlight lessons learned in the management of large VS and provide a rationale for specialized care. METHODS: A prospectively maintained database of over 2,000 patients with VS evaluated at our institution between 2000 and 2016 was reviewed...
June 21, 2017: World Neurosurgery
https://www.readbyqxmd.com/read/28647116/peripheral-nerve-sheath-tumors-of-the-breast
#4
REVIEW
Vivek Charu, Ashley Cimino-Mathews
Benign and malignant peripheral nerve sheath tumors can involve the breast, presenting as masses in the dermis, deep breast parenchyma or axillary soft tissue. Although the histologic features are frequently characteristic, diagnosis can be challenging on core needle biopsy, and the differential diagnosis includes a variety of other benign and malignant spindle cell lesions of the breast. Here, we review the key clinical and pathological features of breast schwannoma, neurofibroma, granular cell tumor, and malignant peripheral nerve sheath tumor...
May 27, 2017: Seminars in Diagnostic Pathology
https://www.readbyqxmd.com/read/28642183/giant-bi-compartmental-cystic-tentorial-schwannoma-mimicking-a-meningioma
#5
Amandeep Kumar, Manmohan Singh, M C Sharma, P S Chandra, Bhawani S Sharma, Ashok K Mahapatra
BACKGROUND: Intracranial schwannomas most commonly arise from vestibulo-cochlear nerve and less frequently from trigeminal, facial and hypoglossal nerves. However, intracranial schwannomas unrelated to cranial nerves (ISUNs) are very rare and only ∼ 50 such cases have been reported in literature. Amongst these, tentorial schwannomas are even rarer and only 13 cases have been reported till date. We present one such rare case of giant tentorial schwannoma (TS). CASE DESCRIPTION: A 21 year old male patient presented to us with complaints of generalised headache and dizziness for past 6 months and worsening of symptoms for past 2 months...
June 19, 2017: World Neurosurgery
https://www.readbyqxmd.com/read/28640700/cns-tumors-in-neurofibromatosis
#6
Jian Campian, David H Gutmann
Neurofibromatosis (NF) encompasses a group of distinct genetic disorders in which affected children and adults are prone to the development of benign and malignant tumors of the nervous system. The purpose of this review is to discuss the spectrum of CNS tumors arising in individuals with NF type 1 (NF1) and NF type 2 (NF2), their pathogenic etiologies, and the rational treatment options for people with these neoplasms. This article is a review of preclinical and clinical data focused on the treatment of the most common CNS tumors encountered in children and adults with NF1 and NF2...
June 22, 2017: Journal of Clinical Oncology: Official Journal of the American Society of Clinical Oncology
https://www.readbyqxmd.com/read/28640097/role-of-endoscopic-ultrasound-and-endoscopic-resection-for-the-treatment-of-gastric-schwannoma
#7
Jinlong Hu, Xiang Liu, Nan Ge, Sheng Wang, Jintao Guo, Guoxin Wang, Siyu Sun
Endoscopic ultrasound (EUS) and endoscopic resection play an important role in gastric submucosal tumor. However, there were few articles regarding EUS and endoscopic resection of gastric schwannomas. Our aim was to evaluate the role of EUS and endoscopic resection in treating gastric schwannomas.We retrospectively reviewed 14 patients between March 2012 and April 2016 with gastric schwannomas and who received EUS and endoscopic resection. EUS characteristics, endoscopic resection, tumor features, and follow-up were evaluated in all the patients...
June 2017: Medicine (Baltimore)
https://www.readbyqxmd.com/read/28637113/case-report-of-intraventricular-schwannoma
#8
Adam A Razak, Gerry M O'Reilly, Robin Highley, Mohammed M Hussain
We describe the case of a 52 year old male presenting with subacute headache. Cranial imaging suggested haemorrhage into a parietal, partially intraventricular, space occupying lesion. The radiology was interpreted to be most consistent with a glioblastoma. The lesion was near totally resected. The histopathology was a WHO grade 1 schwannoma.
March 2, 2017: British Journal of Neurosurgery
https://www.readbyqxmd.com/read/28634514/cystic-lesions-of-peripheral-nerves-are-we-missing-the-diagnosis-of-the-intraneural-ganglion-cyst
#9
Jyoti Panwar, Anil Mathew, Binu P Thomas
AIM: To highlight the salient magnetic resonance imaging (MRI) features of the intraneural ganglion cyst (INGC) of various peripheral nerves for their precise diagnosis and to differentiate them from other intra and extra-neural cystic lesions. METHODS: A retrospective analysis of the magnetic resonance (MR) images of a cohort of 245 patients presenting with nerve palsy involving different peripheral nerves was done. MR images were analyzed for the presence of a nerve lesion, and if found, it was further characterized as solid or cystic...
May 28, 2017: World Journal of Radiology
https://www.readbyqxmd.com/read/28633510/in-reply-stereotactic-radiosurgery-for-cystic-vestibular-schwannomas
#10
Michael J Link
No abstract text is available yet for this article.
June 17, 2017: Neurosurgery
https://www.readbyqxmd.com/read/28633492/letter-stereotactic-radiosurgery-for-cystic-vestibular-schwannomas
#11
Eduardo de Arnaldo Silva Vellutini, Matheus Fernandes de Oliveira
No abstract text is available yet for this article.
June 17, 2017: Neurosurgery
https://www.readbyqxmd.com/read/28633408/risk-factors-for-readmission-with-cerebrospinal-fluid-leakage-within-30-d-of-vestibular-schwannoma-surgery
#12
Ali A Alattar, Brian R Hirshman, Brandon A McCutcheon, Clark C Chen, Thomas Alexander, Jeffrey Harris, Bob S Carter
BACKGROUND: Cerebrospinal fluid (CSF) leak is a well-recognized complication after surgical resection of vestibular schwannomas and is associated with a number of secondary complications, including readmission and meningitis. OBJECTIVE: To identify risk factors for and timing of 30-d readmission with CSF leak. METHODS: Patients who had undergone surgical resection of a vestibular schwannoma from 1995 to 2010 were identified in the California Office of Statewide Health Planning and Development database...
June 14, 2017: Neurosurgery
https://www.readbyqxmd.com/read/28628544/sciatic-nerve-schwannoma-in-the-gluteal-region-mimicking-sciatica
#13
Kamal Mezian, Roman Záhora, Jan Vacek, Jiří Kozák, Leoš Navrátil
No abstract text is available yet for this article.
July 2017: American Journal of Physical Medicine & Rehabilitation
https://www.readbyqxmd.com/read/28627983/susceptibility-weighted-imaging-a-problem-solving-tool-in-differentiation-of-cerebellopontine-angle-schwannomas-and-meningiomas
#14
Atul Mishra, Bejoy Thomas, T R Kapilamoorthy
Background and purpose Vestibular schwannomas and meningiomas of the cerebellopontine angle can be differentiated by the presence of foci of blooming on susceptibility weighted imaging. Materials and methods In this retrospective study, magnetic resonance imaging with susceptibility weighted imaging sequence in addition to other routine sequences was done in 73 patients. All the cases were studied for the presence of foci of blooming within the tumor on susceptibility weighted imaging. Histopathological examination confirmed the diagnosis in all cases...
June 2017: Neuroradiology Journal
https://www.readbyqxmd.com/read/28626414/an-unusual-differential-diagnosis-of-orbital-cavernous-hemangioma-ancient-schwannoma
#15
Sara Filipa Teixeira Ribeiro, Tatiana Queirós, José M Amorim, Ana M Ferreira, Marco Sales-Sanz
Schwannomas are rare lesions of the orbit that can be confused with cavernous hemangioma on imaging studies. We report the case of an 84-year-old woman with a 9-year history of a tumoral lesion in the inferolateral left orbit. The imaging studies did not reveal specific characteristics, only bone remodeling due to the long evolution of the tumor. The patient underwent complete excision of the tumor by anterior orbitotomy via the inferior conjunctival fornix. The histopathological examination revealed an ancient schwannoma, a variant of schwannoma with uncommon histological features...
May 2017: Case Reports in Ophthalmology
https://www.readbyqxmd.com/read/28624667/schwannoma-and-neurofibroma-of-the-posterior-tibial-nerve-presenting-as-tarsal-tunnel-syndrome-review-of-the-literature-with-two-case-reports
#16
REVIEW
Makgabo John Tladi, Nikiforos Pandelis Saragas, Paulo Norberto Ferrao, Andrew Strydom
BACKGROUND: Hallux valgus is the lateral deviation of the great toe at the MTPJ that has many attributing aetiologies. This study will aim to identify whether hallux valgus progresses over time in the oriental Chinese population in Hong Kong. METHODS: Patients with acquired symptomatic hallux valgus who presented to clinic between 2008 and 2013 were included. The deformities were analysed radiologically at presentation and pre-operative and angles were measured...
March 30, 2017: Foot
https://www.readbyqxmd.com/read/28623482/cost-effectiveness-analysis-of-a-non-contrast-screening-mri-protocol-for-vestibular-schwannoma-in-patients-with-asymmetric-sensorineural-hearing-loss
#17
Matthew G Crowson, Daniel J Rocke, Jenny K Hoang, Jane L Weissman, David M Kaylie
PURPOSE: We aimed to determine if a non-contrast screening MRI is cost-effective compared to a full MRI protocol with contrast for the evaluation of vestibular schwannomas. METHODS: A decision tree was constructed to evaluate full MRI and screening MRI strategies for patients with asymmetric sensorineural hearing loss. If a patient were to have a positive screening MRI, s/he received a full MRI. Vestibular schwannoma prevalence, MRI specificity and sensitivity, and gadolinium anaphylaxis incidence were obtained through literature review...
June 16, 2017: Neuroradiology
https://www.readbyqxmd.com/read/28623107/speech-in-noise-perception-in-unilateral-hearing-loss-relation-to-pure-tone-thresholds-and-brainstem-plasticity
#18
Nicolas Vannson, Chris J James, Bernard Fraysse, Boris Lescure, Kuzma Strelnikov, Olivier Deguine, Pascal Barone, Mathieu Marx
We investigated speech recognition in noise in subjects with mild to profound levels of unilateral hearing loss. Thirty-five adults were evaluated using an adaptive signal-to-noise ratio (SNR50) sentence recognition threshold test in three spatial configurations. The results revealed a significant correlation between pure-tone average audiometric thresholds in the poorer ear and SNR thresholds in the two conditions where speech and noise were spatially separated: dichotic - with speech presented to the poorer ear and reverse dichotic - with speech presented to the better ear...
June 13, 2017: Neuropsychologia
https://www.readbyqxmd.com/read/28623066/association-of-posterior-semicircular-canal-hypofunction-on-video-head-impulse-testing-with-other-vestibulo-cochlear-deficits
#19
Alexander A Tarnutzer, Christopher J Bockisch, Elena Buffone, Konrad P Weber
OBJECTIVES: The video-head-impulse test (vHIT) provides a functional assessment of all six semicircular canals (SCC). Occasionally isolated loss of the posterior canal(s) (ILPC) is diagnosed, though this finding is poorly characterized. Here we assessed how accurate that diagnosis is by measuring the co-occurrence of abnormalities on caloric irrigation, vestibular-evoked myogenic-potentials and audiometry. METHODS: We identified 52 patients with ILPC (unilateral=40, bilateral=12)...
May 17, 2017: Clinical Neurophysiology: Official Journal of the International Federation of Clinical Neurophysiology
https://www.readbyqxmd.com/read/28621294/endoscopic-ultrasound-with-tissue-sampling-is-accurate-in-the-diagnosis-and-subclassification-of-gastrointestinal-spindle-cell-neoplasms
#20
Dalbir Singh Sandhu, Adrian N Holm, Rami El-Abiad, Carolyn Rysgaard, Chris Jensen, Henning Gerke
BACKGROUND AND OBJECTIVES: Mesenchymal (spindle cell) neoplasms (SCN) of the gastrointestinal (GI) tract are an important subtype of subepithelial lesions that need subclassification to assess their malignant potential. Reported success rates of accurate subclassification with endoscopic ultrasound (EUS)-guided biopsies are variable. Our goal was to analyze our experience using EUS-guided TruCut biopsy (EUS-TCB) in the majority of patients. METHODS: Retrospective analysis in patients who underwent EUS with biopsies for suspected SCN at our tertiary referral center between 2004 and 2013...
May 2017: Endoscopic Ultrasound
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