1,990 results match your criteria Imaging in Cranial Nerve Schwannoma


Tinnitus Management in Lateral Skull Base Lesions.

J Neurol Surg B Skull Base 2019 Apr 30;80(2):125-131. Epub 2018 Nov 30.

Department of Otolaryngology-Head and Neck Surgery, The University of Michigan, Ann Arbor, Michigan, United States.

Tinnitus, the phantom perception of sound in the absence of a physical sound source, is a complex problem with multiple etiologies. While most commonly presenting in a subjective fashion caused by measurable hearing loss, other etiologies including lateral skull base tumors that encroach on middle and inner ear structures can lead to phantom sound perception as well. In addition to discussing the basic background of tinnitus, here we also review current theories of etiology that include central auditory and nonauditory neural mechanisms and potential treatments that range from sound therapy to medications to cognitive and behavioral therapies and cranial nerve and brain stimulation. Read More

View Article

Download full-text PDF

Source
http://www.thieme-connect.de/DOI/DOI?10.1055/s-0038-1676308
Publisher Site
http://dx.doi.org/10.1055/s-0038-1676308DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6438796PMC
April 2019
3 Reads

Correlation of Pre-Operative Cranial Nerves Diffusion Tensor Tractography with Intra-operative findings in Surgery of Cerebellopontine Angle Tumors.

World Neurosurg 2019 Mar 27. Epub 2019 Mar 27.

Department of Neurosurgery, P. D. Hinduja National Hospital & MRC, Mahim, Mumbai, INDIA. Electronic address:

Objective: Imaging to visualize nerves around tumors preoperatively may help the surgeon to plan surgery and excise the tumor with preservation or improvement in the quality of life. In this prospective study, the authors attempt to correlate preoperative cranial nerves, namely, trigeminal, abducens, facial and vestibulocochlear diffusion tensor tractography and anatomic magnetic resonance imaging (MRI) with intra-operative findings in cerebellopontine angle tumor surgery.

Methods: Forty patients with cerebellopontine angle tumors, 31 vestibular schwannomas, 5 epidermoids, 2 meningiomas, 2 trigeminal schwannomas, undergoing microsurgery for the first time were enrolled. Read More

View Article

Download full-text PDF

Source
http://dx.doi.org/10.1016/j.wneu.2019.03.190DOI Listing

For Whom the Bell's Toll: Recurrent Facial Nerve Paralysis, A Retrospective Study and Systematic Review of the Literature.

Otol Neurotol 2019 Apr;40(4):517-528

Department of Otorhinolaryngology.

Purpose: To examine the etiology, clinical course, and management of recurrent peripheral facial nerve paralysis.

Methods: Retrospective review at a single tertiary academic center and systematic review of the literature. Clinical presentation, laboratory and imaging findings, treatment and outcome for all cases of recurrent ipsilateral, recurrent contralateral, and bilateral simultaneous cases of facial paralysis are reviewed. Read More

View Article

Download full-text PDF

Source
http://dx.doi.org/10.1097/MAO.0000000000002167DOI Listing
April 2019
9 Reads

For Whom the Bell's Toll: Recurrent Facial Nerve Paralysis, A Retrospective Study and Systematic Review of the Literature.

Otol Neurotol 2019 Feb 27. Epub 2019 Feb 27.

Department of Otorhinolaryngology.

Purpose: To examine the etiology, clinical course, and management of recurrent peripheral facial nerve paralysis.

Methods: Retrospective review at a single tertiary academic center and systematic review of the literature. Clinical presentation, laboratory and imaging findings, treatment and outcome for all cases of recurrent ipsilateral, recurrent contralateral, and bilateral simultaneous cases of facial paralysis are reviewed. Read More

View Article

Download full-text PDF

Source
http://dx.doi.org/10.1097/MAO.0000000000002167DOI Listing
February 2019
1 Read

Clinical Applications for Diffusion MRI and Tractography of Cranial Nerves Within the Posterior Fossa: A Systematic Review.

Front Neurosci 2019 7;13:23. Epub 2019 Feb 7.

School of Biomedical Engineering and Imaging Sciences, King's College London, London, United Kingdom.

This paper presents a systematic review of diffusion MRI (dMRI) and tractography of cranial nerves within the posterior fossa. We assess the effectiveness of the diffusion imaging methods used and examine their clinical applications. The Pubmed, Web of Science and EMBASE databases were searched from January 1st 1997 to December 11th 2017 to identify relevant publications. Read More

View Article

Download full-text PDF

Source
http://dx.doi.org/10.3389/fnins.2019.00023DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6380197PMC
February 2019
3 Reads

[Clinical diagnosis and surgical management of 110 cases of facial nerve schwannomas].

Zhonghua Er Bi Yan Hou Tou Jing Wai Ke Za Zhi 2019 Feb;54(2):101-109

Department of Otorhinolaryngology Head and Neck Surgery, Chinese People's Liberation Army General Hospital, Beijing 100853, China.

To elucidate the clinical behavior, causes of misdiagnosis, surgical management, and outcomes of facial nerve schwannomas (FNS). A retrospective review in Chinese People's Liberation Army General Hospital from January 1, 2002 to December 31, 2015 was carried out and evaluated 110 patients with FNS, including 50 males and 60 females, aged 16-67 years old. The appropriate surgical strategy was selected based on each patient's clinical manifestations, facial nerve function, and imaging characteristics. Read More

View Article

Download full-text PDF

Source
http://dx.doi.org/10.3760/cma.j.issn.1673-0860.2019.02.002DOI Listing
February 2019
8 Reads

Short-Term Surgical Outcome for Vestibular Schwannoma in Sweden: A Nation-Wide Registry Study.

Front Neurol 2019 29;10:43. Epub 2019 Jan 29.

Department of Neurosurgery, Sahlgrenska University Hospital, Gothenburg, Sweden.

Vestibular Schwannoma (VS) is a benign neoplasm arising from the 8th cranial nerve, with surgery one of the treatment modalities. In a nation-wide registry study, we describe the baseline, treatment characteristics, and short-term outcome in patients surgically treated for VS. We performed a nationwide study with data from the Swedish Brain Tumor Registry (SBTR) for all adults diagnosed with VS 2009-2015. Read More

View Article

Download full-text PDF

Source
https://www.frontiersin.org/article/10.3389/fneur.2019.00043
Publisher Site
http://dx.doi.org/10.3389/fneur.2019.00043DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6361837PMC
January 2019
19 Reads

Abducens nerve schwannoma: a case report and literature review.

World Neurosurg 2019 Feb 1. Epub 2019 Feb 1.

Department of Neurosurgery, Clinical Research Institute, National Hospital Organization, Kyushu Medical Center, Kyushu Medical Center, 1-8-1, Jigyo-hama, Chuo-ku, Fukuoka 810-8563, Japan.

Background: Abducens nerve function seldom shows complete recovery after removal of abducens nerve schwannoma. No cases with unclear course of the abducens nerve during surgery have been reported to achieve complete recovery of nerve function.

Case Description: We report the case of a 44-year-old woman who presented with occasional dysgeusia without abducens nerve paresis. Read More

View Article

Download full-text PDF

Source
http://dx.doi.org/10.1016/j.wneu.2019.01.123DOI Listing
February 2019

Preoperative prediction of facial nerve in patients with Vestibular Schwannomas: the role of diffusion tensor imaging. A systematic review.

World Neurosurg 2019 Jan 29. Epub 2019 Jan 29.

Academic Neurosurgery, Department of Neurosciences, University of Padova Medical School, via Giustiniani 5, 35128 Padova, Italy.

In vestibular schwannoma surgery the preservation of facial and cochlear nerves is of paramount concern with regard to their impact on the quality of life. The rate of nerve function preservation raised on account of advancement in surgical technique and neuroimaging and as well as the introduction of intraoperative neuromonitoring. Preoperative depiction of anatomical concerns between nerves and tumour could help the surgical planning; indeed many studies investigating advanced imaging for cranial nerves detection, in particular diffusion tensor imaging, have been published from the last decade. Read More

View Article

Download full-text PDF

Source
http://dx.doi.org/10.1016/j.wneu.2019.01.099DOI Listing
January 2019

Pediatric intracranial lower cranial nerve schwannoma unassociated with neurofibromatosis type 2: case report and review of the literature.

Childs Nerv Syst 2019 Jan 13. Epub 2019 Jan 13.

Division of Neurosurgery, National Center for Child Health and Development, Okura 2-10-1, Setagaya-ku, Tokyo, 157-8535, Japan.

Introduction: Pediatric schwannomas are rare, and most of them are associated with neurofibromatosis type 2 (NF2) and usually located in the vestibular nerve. Herein, we present the first pediatric case of intracranial schwannoma derived from the IX/X nerve complex unrelated to NF2.

Case Report: The patient was a 9-year-old boy who presented with a 3-month history of headache and nausea. Read More

View Article

Download full-text PDF

Source
http://dx.doi.org/10.1007/s00381-018-04045-4DOI Listing
January 2019
3 Reads

Skull base angiomatous leiomyoma: a case report and review of literature.

Br J Neurosurg 2019 Jan 12:1-3. Epub 2019 Jan 12.

b Department of Neurosurgery , Royal Hallamshire Hospital , Sheffield , UK.

Leiomyomas, benign neoplasms of mesenchymal origin, are common in gastrointestinal and genitourinary tracts. They are comprised of well-differentiated smooth muscle cells with few mitotic figures. Leiomyomas should not exhibit metastatic potential, though metastasis has been reported. Read More

View Article

Download full-text PDF

Source
http://dx.doi.org/10.1080/02688697.2018.1555636DOI Listing
January 2019
5 Reads

Case Report and Review of the Literature of Schwannomas that Originate from the Falx Cerebri.

World Neurosurg 2019 Jan 3. Epub 2019 Jan 3.

Departments of Neurosurgery, Osaka City University Graduate School of Medicine, Osaka, Japan.

Background: Schwannomas not related to cranial nerves are very rare. Here, we present a case of a schwannoma that originated from the falx cerebri and review reported cases in the literature.

Case Description: A 36-year-old male experienced generalized seizures following right hemiparesis predominantly in his lower extremity. Read More

View Article

Download full-text PDF

Source
http://dx.doi.org/10.1016/j.wneu.2018.12.122DOI Listing
January 2019
1 Read

Dorsally Displaced Facial Nerve in Retrosigmoid Transmeatal Approach for Vestibular Schwannoma: 3-Dimensional Operative Video.

World Neurosurg 2019 Mar 21;123:300. Epub 2018 Dec 21.

Department of Neurosurgery, Tokyo Medical University, Shinjuku-ku, Tokyo, Japan.

Dorsal displacement of the facial nerve is relatively rare in patients with vestibular schwannoma. Its prediction remains difficult in patients with large tumors, even with the recent advances in preoperative radiologic assessments. Anatomic and functional preservation of the facial nerves combined with maximal tumor removal is particularly challenging in this rare anatomic variant, and surgery may lead to postoperative facial dysfunction, inadequate tumor removal, and/or a high retreatment rate. Read More

View Article

Download full-text PDF

Source
http://dx.doi.org/10.1016/j.wneu.2018.11.261DOI Listing
March 2019
3 Reads

Three-dimensional imaging of the human internal acoustic canal and arachnoid cistern: a synchrotron study with clinical implications.

J Anat 2019 Mar 18;234(3):316-326. Epub 2018 Dec 18.

Department of Surgical Sciences, Section of Otolaryngology, Uppsala University Hospital, Uppsala, Sweden.

A thorough knowledge of the gross and micro-anatomy of the human internal acoustic canal (IAC) is essential in vestibular schwannoma removal, cochlear implantation (CI) surgery, vestibular nerve section, and decompression procedures. Here, we analyzed the acoustic-facial cistern of the human IAC, including nerves and anastomoses using synchrotron phase contrast imaging (SR-PCI). A total of 26 fresh human temporal bones underwent SR-PCI. Read More

View Article

Download full-text PDF

Source
http://doi.wiley.com/10.1111/joa.12926
Publisher Site
http://dx.doi.org/10.1111/joa.12926DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6365480PMC
March 2019
5 Reads

The Tethered Effect of Vestibular Schwannoma Tumor Shrinkage Following Stereotactic Radiosurgery in Secondary Trigeminal Neuralgia.

World Neurosurg 2019 Mar 12;123:136-141. Epub 2018 Dec 12.

Department of Neurosurgery, Seikei-kai Chiba Medical Center, Chiba, Japan.

Background: Compression of the trigeminal nerve by vessels and tumors causes trigeminal neuralgia. However, a tethering effect, provoking an abnormal root-stretching force, has been previously reported to play a role in trigeminal nerve hyperexcitability. We report 2 patients with vestibular schwannomas treated by stereotactic radiosurgery (SRS) who presented with typical manifestations of trigeminal neuralgia after tumor shrinkage. Read More

View Article

Download full-text PDF

Source
http://dx.doi.org/10.1016/j.wneu.2018.12.002DOI Listing
March 2019
2 Reads

The Rhomboid Lip: Anatomy, Pathology, and Clinical Consideration in Neurosurgery.

World Neurosurg 2019 Mar 26;123:e252-e258. Epub 2018 Nov 26.

Department of Neurosurgery, Juntendo University, Tokyo, Japan.

Objective: To describe microsurgical anatomy of the rhomboid lip (RL) and to consider its role by presenting histology and clinical cases.

Methods: We examined 10 (20 sides) formalin-fixed adult human cadaveric heads injected with colored silicone. A total of 20 RLs were examined posteriorly. Read More

View Article

Download full-text PDF

Source
http://dx.doi.org/10.1016/j.wneu.2018.11.148DOI Listing

[Clinical treatment and prognosis of 52 cases of neurinoma in parotid region].

Shanghai Kou Qiang Yi Xue 2018 Aug;27(4):411-414

Department of Oral and Maxillofacial Surgery, The First Affiliated Hospital of Huzhou University. Huzhou 313000,Zhejiang Province, China.

Purpose: To investigate the clinical features, diagnosis, and treatment, as well as prognosis of neurinoma in parotid region, in order to provide references for clinical treatment.

Methods: Fifty-two cases of neurinoma in parotid region treated between June 2000 to December 2013 were retrospectively investigated, including their clinical characteristics, imaging examination, diagnosis, therapies and prognosis. SPSS13. Read More

View Article

Download full-text PDF

Source
August 2018
14 Reads

Microsurgical Gross Total Resection of a WHO Grade II Cerebellopontine Angle Ependymoma in an Adult.

J Neurol Surg B Skull Base 2018 Dec 25;79(Suppl 5):S426-S427. Epub 2018 Sep 25.

Department of Neurological Surgery, University of Wisconsin Medical School, Madison, Wisconsin, United States.

Infratentorial ependymomas that arise in the fourth ventricle and extend into the cerebellopontine angle (CPA) through the foramina of Luschka are well described. However, a primary CPA location of an ependymoma is distinctly uncommon. In this video, we present a 46-year-old man with episodes of dizziness, left-sided tinnitus, imbalance, double vision, and nausea. Read More

View Article

Download full-text PDF

Source
http://www.thieme-connect.de/DOI/DOI?10.1055/s-0038-1669969
Publisher Site
http://dx.doi.org/10.1055/s-0038-1669969DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6243230PMC
December 2018
13 Reads

Management of Vestibular Schwannomas for the Radiologist.

Neuroimaging Clin N Am 2019 Feb 31;29(1):173-182. Epub 2018 Oct 31.

Otolaryngology-Head and Neck Surgery, Vagelos College of Physicians & Surgeons, NewYork-Presbyterian/Columbia University Irving Medical Center, 180 Fort Washington Avenue, New York, NY 10032, USA. Electronic address:

Vestibular schwannomas are the most common tumor of the cerebellopontine angle. The history of their management has driven advances in imaging, lateral skull base surgery, as well as radiosurgery. With these advances, a shift has occurred from life-saving treatment for late-stage disease to quality of life focused management of smaller tumors. Read More

View Article

Download full-text PDF

Source
http://dx.doi.org/10.1016/j.nic.2018.09.003DOI Listing
February 2019
21 Reads

Presigmoid Approach to Dumbbell Trigeminal Schwannoma.

J Neurol Surg B Skull Base 2018 Dec 25;79(Suppl 5):S391-S392. Epub 2018 Sep 25.

Department of Neurosurgery, University of Colorado Hospital, Aurora, Colorado, United States.

This case is a 15-year-old male, presenting with headaches, right face, and arm numbness, and ataxia. MRI (magnetic resonance imaging) revealed a large right sided dumbbell shaped lesion, extending into the middle and posterior fossa with compression of the brainstem consistent with a trigeminal schwannoma. Treatment options here would be a retrosigmoid suprameatal approach or a lateral presigmoid approach. Read More

View Article

Download full-text PDF

Source
http://dx.doi.org/10.1055/s-0038-1669977DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6240166PMC
December 2018
14 Reads

Trigeminal Nerve Schwannoma of the Cerebellopontine Angle.

J Neurol Surg B Skull Base 2018 Dec 25;79(Suppl 5):S389-S390. Epub 2018 Sep 25.

Department of Neurologic Surgery, Mayo Clinic, Rochester, Minnesota, United States.

 Large and even moderate sized, extra-axial cerebellopontine angle (CPA) tumors may fill this restricted space and distort the regional anatomy. It may be difficult to determine even with high resolution magnetic resonance imaging (MRI) if the tumor is dural-based, or what the nerve of origin is if a schwannoma. While clinical history and exam are helpful, they are not unequivocal, particularly since many patients present with a myriad of symptoms, or conversely an incidental finding. Read More

View Article

Download full-text PDF

Source
http://dx.doi.org/10.1055/s-0038-1669966DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6240162PMC
December 2018
7 Reads

Natural History, Multimodal Management, and Quality of Life Outcomes of Trigeminal Schwannomas.

J Neurol Surg B Skull Base 2018 Dec 10;79(6):586-592. Epub 2018 May 10.

Department of Surgery, Vancouver General Hospital, University of British Columbia, Vancouver, British Columbia, Canada.

 Trigeminal schwannomas are the second most common among intracranial schwannomas. These can arise from anywhere between the root and the distal extracranial branches of the trigeminal nerve. Clinical presentation depends on location and size, including but not limited to facial hypesthesia or pain, headaches, dizziness, ataxia, and diplopia. Read More

View Article

Download full-text PDF

Source
http://www.thieme-connect.de/DOI/DOI?10.1055/s-0038-1651503
Publisher Site
http://dx.doi.org/10.1055/s-0038-1651503DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6239870PMC
December 2018
11 Reads

Huge Greater Superficial Petrosal Nerve Schwannoma with Intradural Peritumoral Cyst.

World Neurosurg 2019 Feb 1;122:85-89. Epub 2018 Nov 1.

Department of Neurosurgery, Faculty of Medicine, University of Tsukuba, Tsukuba, Ibaraki, Japan.

Background: Schwannoma originating from the greater superficial petrosal nerve is an extremely rare type of facial nerve schwannoma located in the middle cranial fossa around the midportion of the petrous bone. Here, we provide the first report of greater superficial petrosal nerve schwannoma presenting with contralateral facial palsy and hemiparesis due to compression of the pyramidal tract by associated intradural peritumoral cyst.

Case Description: A 69-year-old woman presented with a 6-month history of gradually worsening gait unsteadiness. Read More

View Article

Download full-text PDF

Source
http://dx.doi.org/10.1016/j.wneu.2018.10.129DOI Listing
February 2019
1 Read

Hypoglossal canal schwannoma causing isolated left 12th cranial nerve palsy.

BMJ Case Rep 2018 Nov 1;2018. Epub 2018 Nov 1.

Department of Neurology, Vinayaka Neuro Multispeciality Clinic, Warangal, Telangana, India.

A 40-year-old woman presented with insidious onset, gradually progressive dysarthria and inability to manoeuvre bolus of food in her mouth while eating. The duration of her symptoms was 3 months. On evaluation, the left half of her tongue was wasted. Read More

View Article

Download full-text PDF

Source
http://casereports.bmj.com/lookup/doi/10.1136/bcr-2018-22554
Publisher Site
http://dx.doi.org/10.1136/bcr-2018-225544DOI Listing
November 2018
15 Reads

Sudden neurological deterioration due to repeated intratumoral hemorrhage in a patient with a vestibular schwannoma.

J Clin Neurosci 2019 Mar 28;61:304-307. Epub 2018 Oct 28.

Division of Neurosurgery, Vancouver General Hospital, 899, 12th Avenue West, Vancouver V5Z1M9, Canada.

Vestibular schwannomas (VS) are the most common tumors involving the cerebellopontine angle (CPA) and the internal auditory canal (IAC). These tumors are usually slow-growing and commonly present with cranial nerve dysfunction such as hearing loss. Repeated intratumoral hemorrhage (ITH) is extremely rare with only four cases previously reported. Read More

View Article

Download full-text PDF

Source
https://linkinghub.elsevier.com/retrieve/pii/S09675868183135
Publisher Site
http://dx.doi.org/10.1016/j.jocn.2018.10.052DOI Listing
March 2019
6 Reads

Comparison of Clinical, Histopathological, and Genomic Features Between Malignant Peripheral Nerve Sheath Tumors and Cellular Schwannomas of the Eighth Cranial Nerve: A Case Series.

World Neurosurg 2019 Feb 23;122:e487-e497. Epub 2018 Oct 23.

Neural Reconstruction Department, Beijing Neurosurgical Institute, Capital Medical University, Beijing, China; Department of Neurosurgery, Beijing Tian Tan Hospital, Capital Medical University, Beijing, China. Electronic address:

Background: Malignant peripheral nerve sheath tumors (MPNSTs) and cellular schwannomas (CSs) of the eighth cranial nerve are exceedingly rare. The purpose of the present study was to evaluate clinical and genetic characterization of these rare tumors.

Methods: The clinical and radiological features were analyzed retrospectively. Read More

View Article

Download full-text PDF

Source
https://linkinghub.elsevier.com/retrieve/pii/S18788750183238
Publisher Site
http://dx.doi.org/10.1016/j.wneu.2018.10.087DOI Listing
February 2019
15 Reads
2.420 Impact Factor

Primary Glioblastoma of Cerebellopontine Angle in Adult Mimicking Acoustic Neuroma.

World Neurosurg 2019 Feb 19;122:48-52. Epub 2018 Oct 19.

Department of Neurosurgery, Shanghai Jiao Tong University Affiliated Sixth People's Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, China. Electronic address:

Background: Gliomas are usually located in the supratentorial region and are extremely rare at the cerebellopontine angle (CPA). Consequently, gliomas in the CPA are easy to misdiagnose preoperatively.

Case Description: This paper presents a 55-year-old man with an extraaxial CPA glioblastoma arising from the proximal portion of cranial nerve (CN) VIII. Read More

View Article

Download full-text PDF

Source
http://dx.doi.org/10.1016/j.wneu.2018.10.073DOI Listing
February 2019
2 Reads

Vagus Nerve Schwannoma Mimicking a Lateral Neck Cyst.

J Craniofac Surg 2018 Nov;29(8):e827-e828

School of Medicine, University of Belgrade, Belgrade, Serbia.

Schwannomas are benign tumors originating from Schwann cells of the myelin sheath. The cystic appearance of a cervical vagal schwannoma is an extremely rare finding, with few patients reported in the literature. A 60-year-old female patient was seen at our service for a slow-growing, 9 × 6 cm left-sided cystic neck mass. Read More

View Article

Download full-text PDF

Source
http://Insights.ovid.com/crossref?an=00001665-900000000-9533
Publisher Site
http://dx.doi.org/10.1097/SCS.0000000000005006DOI Listing
November 2018
24 Reads

An Unusual Case of Schwannoma in the Infraorbital Region.

J Craniofac Surg 2018 Nov;29(8):e814-e815

Department of Radiology, Medical Faculty, Ataturk University, Erzurum, Turkey.

Schwannoma is usually an uncommon benign encapsulated slow-growing neural tumor that originates from Schwann cells of peripheral, cranial, and autonomic nerves. It constitutes 1% to 8% of all head and neck neoplasms. Extracranial schwannoma are very rarely seen originating from the infraorbital nerve. Read More

View Article

Download full-text PDF

Source
http://dx.doi.org/10.1097/SCS.0000000000004853DOI Listing
November 2018
4 Reads

Vidian Nerve Schwannoma: A Rare Skull-Base Neoplasm Presenting with Ocular Manifestations: A Case Report and Literature Review.

Perm J 2018 ;22:18-021

Surgeon in the Department of Otolaryngology-Head and Neck Surgery at the Oakland Medical Center in CA

Introduction: Vidian nerve schwannomas are exceedingly rare, with only 7 cases reported since 2006. Patients presenting with ocular symptoms have been reported in only 1 case.

Case Presentation: A 54-year-old woman presented with a 3-month history of right periorbital pressure, third cranial nerve palsy, and visual field defect. Read More

View Article

Download full-text PDF

Source
http://www.thepermanentejournal.org/issues/2018/fall/6868-vi
Publisher Site
http://dx.doi.org/10.7812/TPP/18-021DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6172031PMC
January 2019
9 Reads

Diagnosis and management of pediatric cervical vagal schwannoma.

Int J Pediatr Otorhinolaryngol 2018 Nov 23;114:9-14. Epub 2018 Aug 23.

Department of Otolaryngology, Audiology and Phoniatrics, Pediatric Cochlear Implant Center, Children's Hospital of Bydgoszcz, Poland.

Schwannomas arising from the vagus nerve are extremely rare in children, with only 15 cases reported in the world literature. We describe a pediatric case of cervical vagal nerve schwannoma successfully treated with cranial nerve-sparing surgery. Our patient presented extensive mass in the right side of the neck with ipsilateral Horner's syndrome. Read More

View Article

Download full-text PDF

Source
https://linkinghub.elsevier.com/retrieve/pii/S01655876183041
Publisher Site
http://dx.doi.org/10.1016/j.ijporl.2018.08.021DOI Listing
November 2018
20 Reads
1.320 Impact Factor

Evaluation and Management of Facial Nerve Schwannoma.

Otolaryngol Clin North Am 2018 Dec 18;51(6):1179-1192. Epub 2018 Sep 18.

Department of Otolaryngology, Otology, Neurotology, and Skull Base Surgery, Harvard Medical School, Massachusetts Eye and Ear, 243 Charles Street, Boston, MA 02114, USA.

Facial nerve schwannomas are benign peripheral nerve sheath tumors that arise from Schwann cells, and most commonly present with facial paresis and/or hearing loss. Computed tomography and MRI are critical to diagnosis. Management decisions are based on tumor size, facial function, and hearing status. Read More

View Article

Download full-text PDF

Source
http://dx.doi.org/10.1016/j.otc.2018.07.013DOI Listing
December 2018
3 Reads

Neuroendoscopic Resection of Trigeminal Schwannoma in the Pterygopalatine/Infratemporal Fossa via the Transnasal Perpendicular Plate Palatine Bone or Transnasal Maxillary Sinus Approach.

World Neurosurg 2018 Dec 13;120:e1011-e1016. Epub 2018 Sep 13.

Jiangsu Clinical Medicine Center of Tissue Engineering and Nerve Injury Repair, Chinese Medical Association Neuroendoscopic Training Base and Department of Neurosurgery, Affiliated Hospital of Nantong University, Nantong, Jiangsu Province, China. Electronic address:

Background: Both the pterygopalatine fossa (PPF) and the infratemporal fossa (ITF) lie outside the midline of the skull base. Lesions in the PPF or ITF include trigeminal schwannoma (trigeminal schwannoma, TS), which originates from the second or third branch of the trigeminal nerve (maxillary nerve or mandibular nerve). Due to their typically deep anatomic location, lesions in the PPF or ITF can be difficult to treat using traditional surgical approaches. Read More

View Article

Download full-text PDF

Source
http://dx.doi.org/10.1016/j.wneu.2018.08.216DOI Listing
December 2018
6 Reads

Intraosseous intraneural perineurioma derived from the inferior alveolar nerve with an abnormality of chromosome 22 and expression of the BCR-ABL fusion gene: report of a case and review of recent literature.

World J Surg Oncol 2018 Sep 13;16(1):189. Epub 2018 Sep 13.

Department of Oral and Maxillofacial Surgery, and Plastic Surgery, Gunma University Graduate School of Medicine, 4-39-15 Showa-machi, Maebashi, Gunma, 371-8511, Japan.

Background: Perineurioma (PN) is a peripheral nerve disease that primarily develops in the limbs and trunk and very rarely occurs in the oral cavity. PN is classified into two types: intraneural perineurioma (INPN) and soft tissue perineurioma (extraneural perineurioma, ENPN). In this article, we report a patient with mandibular body INPN derived from the perineurium of the inferior alveolar nerve. Read More

View Article

Download full-text PDF

Source
http://dx.doi.org/10.1186/s12957-018-1481-8DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6137890PMC
September 2018
5 Reads

Role of Endoscopy in Resection of Intracanalicular Vestibular Schwannoma via Middle Fossa Approach: Technical Nuances.

World Neurosurg 2018 Dec 7;120:395-399. Epub 2018 Sep 7.

Department of Neurological Surgery, The Ohio State University Wexner Medical Center, Columbus, Ohio, USA; Department of Otolaryngology-Head and Neck Surgery, The Ohio State University Wexner Medical Center, Columbus, Ohio, USA. Electronic address:

Background: Surgical resection of vestibular schwannomas (VS) located within the internal auditory canal (IAC) is challenging, especially those located very laterally in the IAC. Various transcranial approaches have been described for resection of intracanalicular VS including retrosigmoid, translabyrinthine, and middle fossa approaches. Each approach has its indications, advantages, and limitations. Read More

View Article

Download full-text PDF

Source
http://dx.doi.org/10.1016/j.wneu.2018.08.215DOI Listing
December 2018
3 Reads

Recurrent isolated oculomotor nerve palsy caused by schwannoma in a pediatric patient.

Indian J Ophthalmol 2018 09;66(9):1367-1369

Department of Ophthalmology, Yeungnam University College of Medicine, Daegu, South Korea.

Isolated schwannomas of motor nerves to extraocular muscles are uncommon. In addition, most previous studies on oculomotor nerve schwannoma discuss adult patients, and pediatric cases are rare. We report a 10-year-old girl who developed recurrent oculomotor nerve palsy caused by schwannoma without any vascular malformation. Read More

View Article

Download full-text PDF

Source
http://www.ijo.in/text.asp?2018/66/9/1367/239350
Publisher Site
http://dx.doi.org/10.4103/ijo.IJO_340_18DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6113819PMC
September 2018
19 Reads

Using Three-Dimensional Printing to Create Individualized Cranial Nerve Models for Skull Base Tumor Surgery.

World Neurosurg 2018 Dec 16;120:e142-e152. Epub 2018 Aug 16.

Biomanufacturing Center, Department of Mechanical Engineering, Tsinghua University, Beijing, China. Electronic address:

Objective: Using three-dimensional (3D) printing to create individualized patient models of the skull base, the optic chiasm and facial nerve can be previsualized to help identify and protect these structures during tumor removal surgery.

Methods: Preoperative imaging data for 2 cases of sellar tumor and 1 case of acoustic neuroma were obtained. Based on these data, the cranial nerves were visualized using 3D T1-weighted turbo field echo sequence and diffusion tensor imaging-based fiber tracking. Read More

View Article

Download full-text PDF

Source
http://dx.doi.org/10.1016/j.wneu.2018.07.236DOI Listing
December 2018
27 Reads

Perioperative Care of the Patient With Acoustic Neuroma.

Authors:
Kristen A Oster

AORN J 2018 Aug;108(2):155-163

Acoustic neuromas, also known as vestibular schwannomas, are slow-growing, benign tumors that develop on the eighth cranial nerve. Common signs and symptoms of an acoustic neuroma include hearing loss and balance disturbances. A physical examination, a hearing evaluation, and diagnostic imaging assist in the diagnosis of an acoustic neuroma. Read More

View Article

Download full-text PDF

Source
http://doi.wiley.com/10.1002/aorn.12307
Publisher Site
http://dx.doi.org/10.1002/aorn.12307DOI Listing
August 2018
20 Reads

Multiple cranial nerve schwannomas and meningiomas as a hallmark sign of neurofibromatosis type 2 in a child.

Turk J Pediatr 2018 ;60(1):107-110

Department of Radiology, Sisli Hamidiye Etfal Training and Research Hospital, Sisli, Istanbul, Turkey.

Halefoğlu AM. Multiple cranial nerve schwannomas and meningiomas as a hallmark sign of neurofibromatosis type 2 in a child. Turk J Pediatr 2018; 60: 107-110. Read More

View Article

Download full-text PDF

Source
http://dx.doi.org/10.24953/turkjped.2018.01.018DOI Listing
January 2019
12 Reads

Continuous and Dynamic Facial Nerve Mapping During Surgery of Cerebellopontine Angle Tumors: Clinical Pilot Series.

World Neurosurg 2018 Nov 9;119:e855-e863. Epub 2018 Aug 9.

Department of Neurosurgery, Medical Faculty, Heinrich Heine University, Düsseldorf, Düsseldorf, Germany.

Objective: To evaluate a new surgical tool combining suction and monopolar neurostimulation (stimulation sucker) for cerebellopontine angle (CPA) tumors. The usefulness for continuous (time) and dynamic (space) facial nerve mapping was studied.

Methods: Patients operated on with the stimulation sucker for a CPA tumor between April 2016 and May 2017 in a tertiary care center were identified. Read More

View Article

Download full-text PDF

Source
http://dx.doi.org/10.1016/j.wneu.2018.07.286DOI Listing
November 2018
17 Reads

Endoscopic Transvestibular Transmandibular Approach for Trigeminal Schwannoma in Infratemporal Fossa and Parapharyngeal Space.

World Neurosurg 2018 Oct 18;118:172-176. Epub 2018 Jul 18.

Department of Neurosurgery, Third Affiliated Hospital of Sun Yat-Sen University, Guangzhou, China. Electronic address:

Background: Schwannomas that involve the mandibular division of the trigeminal nerve and localize exclusively in the parapharyngeal space (PPS) and infratemporal fossa (ITF) are extremely rare, and a surgical approach to treat such tumors has not been well established.

Case Description: We present our experience in the treatment of a giant trigeminal schwannoma with wide extension in the ITF and PPS using an endoscopic transvestibular transmandibular approach. The clinical and radiologic findings, preoperative planning, advantages of the surgical approach, and clinical outcome are discussed. Read More

View Article

Download full-text PDF

Source
http://dx.doi.org/10.1016/j.wneu.2018.07.087DOI Listing
October 2018
5 Reads

Adjunctive Gamma Knife Surgery or Wait and Scan Policy After Optimal Resection of Large Vestibular Schwannomas: Clinical and Radiologic Outcomes.

World Neurosurg 2018 Oct 18;118:e895-e905. Epub 2018 Jul 18.

Department of Neurosurgery, North University Hospital, Assistance Publique-Hopitaux Marseille, Marseille, France.

Objectives: Patients with large vestibular schwannomas (VSs) will require surgical treatment owing to the potential consequences of long tract and cranial nerve compression. We assessed the long-term clinical and radiologic outcomes of patients harboring large VSs treated with a facial nerve (FN)-sparing technique.

Methods: We performed a single-center retrospective cohort study of 169 consecutive large VSs treated surgically from January 2003 to May 2015. Read More

View Article

Download full-text PDF

Source
http://dx.doi.org/10.1016/j.wneu.2018.07.093DOI Listing
October 2018
13 Reads

Stereotactic radiotherapy in three weekly fractions for the management of vestibular schwannomas.

Am J Otolaryngol 2018 Sep - Oct;39(5):561-566. Epub 2018 Jun 22.

Saint Louis University School of Medicine, Department of Otolaryngology - Head and Neck Surgery, 3635 Vista Ave, 6FDT, St. Louis, MO 63110, USA. Electronic address:

Purpose: This study evaluates the rates of tumor control, hearing preservation and cranial nerve toxicity with the use of CyberKnife stereotactic radiotherapy consisting of 2100 cGy to the 80% isodose line delivered in three weekly fractions to treat vestibular schwannomas.

Materials And Methods: Retrospective chart review of vestibular schwannoma patients treated with CyberKnife stereotactic radiotherapy or undergoing watchful waiting between 2006 and 2017 was performed. For inclusion, patients receiving CyberKnife stereotactic radiotherapy must have had pretreatment magnetic resonance imaging and audiography, and 2 follow-up magnetic resonance imaging and audiograms. Read More

View Article

Download full-text PDF

Source
http://dx.doi.org/10.1016/j.amjoto.2018.06.017DOI Listing
January 2019
32 Reads

Hearing Preservation After Translabyrinthine Vestibular Schwannoma Excision: Audiometry and Electrocochleography Results.

Ann Otol Rhinol Laryngol 2018 Aug 25;127(8):563-567. Epub 2018 Jun 25.

2 The Ohio State University Wexner Medical Center, Department of Otolaryngology-Head and Neck Surgery, Division of Otology, Neurotology, and Cranial Base Surgery, Columbus, Ohio, USA.

Objectives: To describe a case of inadvertent hearing preservation following a classical translabyrinthine resection of a vestibular schwannoma of the internal auditory canal in an otherwise healthy patient.

Methods: Herein, we describe the case of an otherwise healthy patient who underwent resection of an intracanalicular vestibular schwannoma via a translabyrinthine approach. Furthermore, as part of an ongoing study aimed at characterizing hearing changes due to intraoperative events, cochlear hair cell and nerve activity were monitored using electrocochleography throughout surgery. Read More

View Article

Download full-text PDF

Source
http://journals.sagepub.com/doi/10.1177/0003489418783788
Publisher Site
http://dx.doi.org/10.1177/0003489418783788DOI Listing
August 2018
13 Reads

Gamma knife radiosurgery for trigeminal schwannoma: a 20-year experience with long-term treatment outcome.

J Neurooncol 2018 Oct 21;140(1):89-97. Epub 2018 Jun 21.

Department of Neurosurgery, College of Medicine, Kyung Hee University, 23 Kyungheedae-ro, Dongdaemun-gu, Seoul, 02447, South Korea.

Purpose: This study evaluated the long-term tumor control rate (TCR) and symptomatic outcomes of patients treated with gamma knife radiosurgery (GKRS) for trigeminal schwannomas (TSs).

Methods: Thirty-two patients with TS who underwent GKRS between January 1994 and January 2013 with at least 2 years of follow-up were enrolled in the study. Clinical charts and surgical records were retrospectively reviewed to evaluate factors affecting TCR and symptomatic outcomes. Read More

View Article

Download full-text PDF

Source
http://dx.doi.org/10.1007/s11060-018-2934-1DOI Listing
October 2018
8 Reads
3.070 Impact Factor

Tumor-associated hemorrhage in patients with vestibular schwannoma.

Acta Neurochir (Wien) 2018 Aug 18;160(8):1563-1569. Epub 2018 Jun 18.

Department of Neurosurgery, West China Hospital of Sichuan University, No.37, Guoxue Alley, Chengdu, 610041, Sichuan Province, People's Republic of China.

Object: Intratumoral hemorrhage (ITH) associated with vestibular schwannomas (VS) is very rare. We retrospectively analyzed VS patients presenting with ITH in our department to further gain a better understanding of this uncommon clinical presentation.

Methods: We treated seven patients who had VS presenting with ITH between January 2012 and June 2017. Read More

View Article

Download full-text PDF

Source
http://dx.doi.org/10.1007/s00701-018-3588-7DOI Listing
August 2018
11 Reads
1.790 Impact Factor

Schwannomatosis: a genetic and epidemiological study.

J Neurol Neurosurg Psychiatry 2018 Nov 16;89(11):1215-1219. Epub 2018 Jun 16.

Department of Genomic Medicine, St Mary's Hospital, Manchester Academic Health Sciences Centre (MAHSC), Division of Evolution and Genomic Science, University of Manchester, Manchester, UK.

Objectives: Schwannomatosis is a dominantly inherited condition predisposing to schwannomas of mainly spinal and peripheral nerves with some diagnostic overlap with neurofibromatosis-2 (NF2), but the underlying epidemiology is poorly understood. We present the birth incidence and prevalence allowing for overlap with NF2.

Methods: Schwannomatosis and NF2 cases were ascertained from the Manchester region of England (population=4. Read More

View Article

Download full-text PDF

Source
http://dx.doi.org/10.1136/jnnp-2018-318538DOI Listing
November 2018
16 Reads
1 Citation
6.810 Impact Factor

Does a "Fundal Fluid Cap" Predict Successful Hearing Preservation in Vestibular Schwannoma Resections Via the Middle Cranial Fossa Approach?

Otol Neurotol 2018 Jul;39(6):772-777

Department of Otolaryngology-Head and Neck Surgery, University of Iowa Hospitals and Clinics, Iowa City, Iowa.

Objective: To determine the association between radiographic cerebrospinal fluid (CSF) cap in the lateral internal auditory canal (IAC) and likelihood of successful hearing preservation in middle cranial fossa (MCF) vestibular schwannoma (VS) surgery.

Study Design: Retrospective chart review.

Setting: Academic tertiary referral center. Read More

View Article

Download full-text PDF

Source
http://dx.doi.org/10.1097/MAO.0000000000001811DOI Listing
July 2018
22 Reads

Primary Skull Base Lymphoma: Manifestations and Clinical Outcomes of a Great Imitator.

Otolaryngol Head Neck Surg 2018 Oct 8;159(4):643-649. Epub 2018 May 8.

2 Department of Otolaryngology-Head and Neck Surgery, Mayo Clinic, Rochester, Minnesota, USA.

Objectives Primary skull base lymphoma (PSBL) represents a rare manifestation of extranodal lymphoma. Presenting with nonspecific symptomatology and imaging findings, PSBL often masquerades as more common cranial base pathology and thus can present a diagnostic challenge. The objectives of this study were to characterize the manifestations and clinical outcomes of PSBL. Read More

View Article

Download full-text PDF

Source
http://journals.sagepub.com/doi/10.1177/0194599818773994
Publisher Site
http://dx.doi.org/10.1177/0194599818773994DOI Listing
October 2018
9 Reads

A Small Glossopharyngeal Schwannoma Presenting with Intractable Vomiting: Case Presentation and Literature Review.

World Neurosurg 2018 Jul 11;115:101-104. Epub 2018 Apr 11.

Department of Neurosurgery, Cleveland Clinic Florida, Weston, Florida, USA. Electronic address:

Background: Glossopharyngeal schwannomas are rare tumors. Clinical and radiologic presentation closely resembles those of vestibular schwannomas. Their clinical presentation varies from vestibulocochlear dysfunction to glossopharyngeal and vagal nerve dysfunction. Read More

View Article

Download full-text PDF

Source
http://dx.doi.org/10.1016/j.wneu.2018.04.002DOI Listing
July 2018
3 Reads