2,079 results match your criteria Imaging in Cranial Nerve Schwannoma


A Case of Recurrent Painful Ophthalmoplegic Neuropathy.

Front Neurol 2020 4;11:440. Epub 2020 Jun 4.

Department of Neurology, Second Affiliated Hospital, College of Medicine, Zhejiang University, Hangzhou, China.

Ophthalmoplegic migraine (OM) is characterized by recurrent episodes of headache with unilateral ophthalmoplegia due to paresis of cranial nerve III, IV, or VI. The recent revision to the International Headache Classification has reclassified it as recurrent painful ophthalmoplegic neuropathy (RPON). However, it is of note that the presentation of oculomotor nerve tumors may mimic RPON. Read More

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http://dx.doi.org/10.3389/fneur.2020.00440DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC7287175PMC

A rare case of schwannoma arising from dura mater of the petrosal surface in the posterior cranial fossa.

World Neurosurg 2020 Jun 19. Epub 2020 Jun 19.

Department of Neurosurgery, Kyoto University Graduate School of Medicine, Kyoto, Japan.

Background: An intracranial schwannoma originating in the dura mater is extremely rare. Herein, we report a case of schwannoma arising from the dura mater of the petrosal surface in the posterior cranial fossa.

Case Description: A 48-year-old man presented with slight gait disturbance and papilledema. Read More

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http://dx.doi.org/10.1016/j.wneu.2020.06.078DOI Listing

Orofacial pain secondary to acoustic neuroma-A case report.

Spec Care Dentist 2020 May 8;40(3):303-307. Epub 2020 May 8.

Department of Restorative Dentistry, Federal University of Ceará, Fortaleza, Ceará, Brazil.

Aim: The present study aimed to report a case of orofacial pain secondary to acoustic neuroma (AN).

Methods And Results: A 66-year-old female presented with unilateral facial pain and odontalgia. The pain was described as throbbing, dull, and constant. Read More

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http://dx.doi.org/10.1111/scd.12461DOI Listing

Endoscopic Transoral Resection of Tongue Base Ancient Schwannoma.

J Craniofac Surg 2020 Jun;31(4):e409-e411

Department of Pathology, Inönü University, Turgut Özal Medicine Center, Malatya, Turkey.

Schwannoma is a benign slow growing nerve sheath tumor that is typically encapsulated and composed of well-differentiated schwann cells. Schwannomas may take origin from different nerves such as cranial, spinal nerves, and the sympathetic chain. Approximately 25% to 45% of all occur in the head and neck only 1% of them are located in the oral cavity. Read More

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http://dx.doi.org/10.1097/SCS.0000000000006416DOI Listing

Trochlear Schwannoma Arising from Transition Zone of Nerve Sheath in the Pineal Region: Case Report and Review of the Literature.

World Neurosurg 2020 May 12;137:218-225. Epub 2020 Feb 12.

Department of Chemical and Materials Engineering, Chang Gung University, Taoyuan, Taiwan; Department of Neurosurgery, Chang Gung Memorial Hospital, Linkou Medical Center, Taoyuan, Taiwan. Electronic address:

Background: This report presents the third case of trochlear schwannoma arising from the pineal region and the first case to be resected using a paramedian infratentorial supracerebellar approach. Schwannomas of cranial nerves have traditionally been thought to arise from the transitional point where the axonal envelopment switches from glial cells to Schwann cells; however, recent temporal bone histopathologic evidence from vestibular schwannomas challenges this view. Of the 38 cases of pathology-confirmed trochlear schwannoma in the literature, there are only 2 cases arising from the pineal region, where the nerve sheath transition zone is located. Read More

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http://dx.doi.org/10.1016/j.wneu.2020.02.019DOI Listing

Schwannomas of Uncommon Peripheral Locations: Analysis of Imaging Findings of 21 Cases.

Curr Med Imaging Rev 2019;15(6):578-584

Department of Radiology, Istanbul Research and Training Hospital, Istanbul, Turkey.

Background: Schwannomas are benign slow-growing tumors most often associated with the cranial nerves. Schwannomas often originate from the eighth cranial nerve. They may also originate from the peripheral nervous system of the neck and extremities. Read More

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http://dx.doi.org/10.2174/1573405614666181005115631DOI Listing
January 2019

Reliability of diffusion tensor tractography of facial nerve in cerebello-pontine angle tumours.

Neurol Neurochir Pol 2020 20;54(1):73-82. Epub 2020 Jan 20.

Medical University of Gdańsk, Neurosurgery Department, Debinki 7, 81-952 Gdańsk, Poland.

Aim Of The Study: This study aimed to verify the accuracy of preoperative visualisation of the facial nerve (FN) by magnetic resonance-based (MR) diffusion tensor imaging-fibre tracking (DTI-FT) with neuronavigation system integration in patients with cerebello-pontine angle (CPA) tumours.

Clinical Rationale For The Study: Complete excision with preservation of the FN remains the critical goal of today's vestibular schwannoma (VS) surgery. DTI-FT of the FN with neuronavigation is yet to be fully evaluated, and could make surgery safer. Read More

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http://dx.doi.org/10.5603/PJNNS.a2020.0001DOI Listing

Tumors of the temporal bone.

Cas Lek Cesk 2019 ;158(6):248-252

Temporal bone tumors are rare entities. Histologically these pathologies represent heterogeneous group of diseases. The most common tumors of the temporal bone are vestibular schwannoma, tympanojugular paragangliomas and temporal bone carcinomas. Read More

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January 2020

Location of Small Intracanalicular Vestibular Schwannomas Based on Magnetic Resonance Imaging.

Otolaryngol Head Neck Surg 2020 Feb 17;162(2):211-214. Epub 2019 Dec 17.

Department of Otolaryngology, Harvard Medical School, Boston, Massachusetts, USA.

Vestibular schwannomas (VSs) were proposed to arise from the glial-Schwann cell junction within the internal auditory canal (IAC). However, otopathology studies indicate that VS may arise anywhere along the course of the vestibular nerve. Recent studies suggested that the majority of tumors are located centrally within the IAC with an equal distribution near the porus acusticus and the fundus. Read More

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http://dx.doi.org/10.1177/0194599819893106DOI Listing
February 2020

Two-Dimensional Video of Surgery on Trochlear Schwannoma.

World Neurosurg 2020 Mar 12;135:112. Epub 2019 Dec 12.

Department of Neurosurgery, Gazi University Faculty of Medicine, Ankara, Turkey.

Trochlear schwannoma in the absence of neurofibromatosis is a rare entity. These schwannomas originate usually from the intradural cisternal part of the nerve and expand in the ambient and interpeduncular cisterns as well as inferiorly in the upper part of the cerebellopontine cistern. This case involves a rare pontomesencephalic lesion removed successfully via the simple retrosigmoid suboccipital route (Video 1). Read More

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http://dx.doi.org/10.1016/j.wneu.2019.11.128DOI Listing

Hypoglossal Nerve Schwannoma: Case Report and Literature Review.

World Neurosurg 2020 Mar 9;135:205-208. Epub 2019 Dec 9.

Department of Neurosurgery. Hospital Universitario de Caracas, Caracas, Venezuela.

Background: Hypoglossal schwannomas are rare, benign intracranial neoplasms; they represent 5% of all nonvestibular schwannomas.

Case Description: A 22-year-old male patient had presented 4 months before admission with left-sided hearing loss, an increase in the base of support with lateralization to the left, and dysphagia to solids. Physical examination on admission showed hypotrophy of the tongue and deviation to the left. Read More

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http://dx.doi.org/10.1016/j.wneu.2019.12.006DOI Listing
March 2020
5 Reads

A laparoscopic treatment of a suspicious adrenal mass revealing an unsual cause of adrenal incidentaloma.

Pan Afr Med J 2019 12;34:28. Epub 2019 Sep 12.

Department of Endocrinology and Diabetology, University Hospital of Fez, Fez, Morocco.

Schwannomas are rare tumors, usually benign, originating from the Schwann sheath of the peripheral or cranial nerves. They are an extremely uncommon cause of adrenal incidentaloma. It is difficult to diagnose adrenal schwannoma preoperatively by imaging alone due of their aspect suspect on it. Read More

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http://dx.doi.org/10.11604/pamj.2019.34.28.18239DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6859016PMC
December 2019

Super-resolution Diffusion Tensor Imaging for Delineating the Facial Nerve in Patients with Vestibular Schwannoma.

J Neurol Surg B Skull Base 2019 Dec 1;80(6):648-654. Epub 2019 Mar 1.

Eaton Peabody Laboratories, Massachusetts Eye and Ear Infirmary, Boston, Massachusetts, United States.

 Predicting the course of cranial nerves (CNs) VII and VIII in the cerebellopontine angle on preoperative imaging for vestibular schwannoma (VS) may help guide surgical resection and reduce complications. Diffusion magnetic resonance imaging dMRI is commonly used for this purpose, but is limited by its resolution. We investigate the use of super-resolution reconstruction (SRR), where several different dMRIs are combined into one dataset. Read More

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http://dx.doi.org/10.1055/s-0039-1677864DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6864920PMC
December 2019

Factors Associated With Facial Nerve Paresis Following Gamma Knife for Vestibular Schwannoma.

Otol Neurotol 2020 01;41(1):e83-e88

Department of Otorhinolaryngology-Head and Neck Surgery.

Objective: Evaluate the incidence of and potential contributory factors to facial nerve paresis and other cranial neuropathies (CN) following stereotactic radiosurgery with Gamma Knife (GK) for primary treatment of vestibular schwannoma (VS).

Study Design: Retrospective chart review.

Setting: Tertiary referral center. Read More

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http://dx.doi.org/10.1097/MAO.0000000000002401DOI Listing
January 2020

Delayed Onset Abducens Nerve Palsy following Uncomplicated Large Cystic Vestibular Schwannoma Resection: Case Report.

J Neurol Surg Rep 2019 Oct 30;80(4):e37-e40. Epub 2019 Oct 30.

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

Although delayed facial palsy after vestibular schwannoma (VS) surgery is a poorly understood but a well-known phenomenon, other delayed cranial nerve palsies in the cerebellopontine angle have not been reported after VS surgery. In this report, we describe a 54-year-old woman with a large cystic VS who experienced double vision and a new delayed onset right abducens nerve (AbN) palsy, 3 weeks after gross total resection of VS via a translabyrinthine approach. To the best of our knowledge, this is the first report describing delayed isolated AbN palsy after uncomplicated VS surgery. Read More

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http://dx.doi.org/10.1055/s-0039-1694737DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6821525PMC
October 2019

Cochlear Dead Regions in Sporadic Unilateral Vestibular Schwannomas Using the Threshold-Equalizing Noise Test.

Audiol Neurootol 2019 30;24(6):271-278. Epub 2019 Oct 30.

Department of Otorhinolaryngology-Head and Neck Surgery, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Republic of Korea,

Background: Vestibular schwannoma (VS) is a benign intracranial neoplasm originating in the Schwann cells of the vestibular nerve. Despite its origin, the most common symptom is sensorineural hearing loss which is presented in more than 90% of patients. The underlying pathophysiology of this hearing loss has not been fully understood. Read More

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http://dx.doi.org/10.1159/000503164DOI Listing

Recurrent Painful Ophthalmoplegic Neuropathy and Oculomotor Nerve Schwannoma: A Pediatric Case Report with Long-Term MRI Follow-Up and Literature Review.

Pain Res Manag 2019 25;2019:5392945. Epub 2019 Sep 25.

Department of Basic Medical Sciences, Neurosciences and Sense Organs Department, University of Bari "Aldo Moro", Bari, Italy.

Background: Recurrent painful ophthalmoplegic neuropathy (RPON), previously known as ophthalmoplegic migraine (OM), is an uncommon disorder with repeated episodes of ocular cranial nerve neuropathy associated with ipsilateral headache. The age of presentation is most often during childhood or adolescence. MRI has a central role in the assessment of the RPON, especially to distinguish orbital, parasellar, or posterior fossa lesions that mimic symptoms of RPON. Read More

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http://dx.doi.org/10.1155/2019/5392945DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6778936PMC
January 2020
1 Read

Granular cell tumour of the cavernous sinus: A rare cause of secondary trigeminal neuralgia.

Br J Neurosurg 2019 Oct 25:1-5. Epub 2019 Oct 25.

Department of Neurosurgery, Queen's Hospital , Romford , UK.

Cavernous sinus tumours comprise 0.1-0.2% of all intracranial tumours, and are most commonly meningiomas or schwannomas. Read More

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http://dx.doi.org/10.1080/02688697.2019.1673314DOI Listing
October 2019
1 Read

Giant paravertebral schwannoma near the lumbar nerve roots with bone destruction: A case report.

Medicine (Baltimore) 2019 Oct;98(42):e17341

Department of Orthopedics, Artificial Joints Engineering and Technology Research Center of Jiangxi Province, The First Affiliated Hospital of Nanchang University, Nanchang, Jiangxi, China.

Rationale: Schwannomas grow slowly, originating from the Schwann cells of the nerve sheath. Schwannomas of cranial origin have the highest incidence, followed by intraspinal schwannomas. However, paravertebral schwannoma is rare, and to our knowledge, giant paravertebral schwannomas near the lumbar nerve roots with bone destruction are extremely rare. Read More

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http://dx.doi.org/10.1097/MD.0000000000017341DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6824752PMC
October 2019
1 Read
5.723 Impact Factor

Endoglin-based assessment of neoangiogenesis in sporadic VIII cranial nerve schwannoma.

Pathol Res Pract 2019 Nov 17;215(11):152648. Epub 2019 Sep 17.

Department of Neuroscience DNS, Otolaryngology Section, Padova University, Padova, Italy.

Although the diagnosis and treatment of sporadic vestibular schwannoma has improved in recent years, no factors capable of predicting its growth have been identified as yet. Endoglin (CD105) is a proliferation-associated protein expressed in angiogenic endothelial cells, and a potential prognostic indicator for several solid tumors. The aim of the present study was primarily to investigate the expression and role of CD105 in a series of sporadic vestibular nerve schwannomas. Read More

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http://dx.doi.org/10.1016/j.prp.2019.152648DOI Listing
November 2019

Anterolateral Approach for Retrostyloid Superior Parapharyngeal Space Schwannomas Involving the Jugular Foramen Area: A 20-Year Experience.

World Neurosurg 2019 Dec 11;132:e40-e52. Epub 2019 Sep 11.

Neurosurgery Unit, Department of Clinical-Surgical, Diagnostic and Pediatric Sciences, University of Pavia, Pavia, Italy; Neurosurgery Unit, Department of Surgical Sciences, Fondazione IRCCS Policlinico San Matteo, Pavia, Italy.

Background: Schwannomas encompassing the superior parapharyngeal space are challenging lesions because of the anatomical complexity of this region and the frequent involvement of the neurovascular structures of the jugular foramen. The purpose of this study is to report the technical aspects and the advantages of the anterolateral approach, here proposed for schwannomas of this complex area.

Methods: The main steps of the anterolateral approach are described in detail, along with the results of a consecutive series of 38 patients with a retrostyloid superior parapharyngeal schwannoma involving the jugular foramen operated on by means of this route between 1999 and 2019. Read More

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http://dx.doi.org/10.1016/j.wneu.2019.09.006DOI Listing
December 2019
3 Reads

Isolated hypoglossal nerve palsy due to a jugular foramen schwannoma.

Ideggyogy Sz 2019 Jul;72(7-8):282-284

Koç University Hospital, Departments of Neurology, İstanbul, Turkey.

Introduction - Although the involvement of the hypoglossal nerve together with other cranial nerves is common in several pathological conditions of the brain, particularly the brainstem, isolated hypoglossal nerve palsy is a rare condition and a diagnostic challenge. Case presentation - The presented patient arrived to the hospital with a history of slurred speech and an uncomfortable sensation on his tongue. Neurological examination showed left-sided hemiatrophy of the tongue with fasciculations and deviation towards the left side during protrusion. Read More

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http://dx.doi.org/10.18071/isz.72.0282DOI Listing
July 2019
1 Read

Predicting hearing outcomes before primary radiosurgery for vestibular schwannomas.

J Neurosurg 2019 Sep 6:1-7. Epub 2019 Sep 6.

Departments of1Neurological Surgery and.

Objective: Optimizing outcomes in the management of patients with vestibular schwannomas (VSs) requires consideration of the patient's goals. Earlier recognition of VS by imaging has led to an evolution in management. Stereotactic radiosurgery (SRS) has emerged as a frequently used strategy designed to reduce management risks, obtain long-term tumor control, and preserve current neurological function. Read More

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http://dx.doi.org/10.3171/2019.5.JNS182765DOI Listing
September 2019
2 Reads

Facial nerve schwannoma mimicking chronic suppurative otitis media: A case report.

Medicine (Baltimore) 2019 Aug;98(35):e16844

Rationale: Facial nerve schwannoma (FNS) is a rare slow-growing nerve sheath tumor derived from Schwann cells. FNS with normal facial nerve function may sometimes be misdiagnosed as otitis media because of similar ontological symptoms such as purulence, tympanic membrane damage, and hearing loss.

Patient Concerns: A 68-year-old woman was referred to our department because of otorrhea and hearing loss in the right ear for 20 years. Read More

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http://dx.doi.org/10.1097/MD.0000000000016844DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6736062PMC
August 2019
1 Read

Solitary neurofibroma of the floor of the mouth: rare localization at lingual nerve with intraoral excision.

BMC Oral Health 2019 08 29;19(1):197. Epub 2019 Aug 29.

Faculté d'odontologie, Université Reims Champagne Ardenne, Reims, France.

Background: Neurofibromas (NF) are benign tumors of the peripheral nerves that are composed of Schwann cells, perineural-like cells and fibroblasts. The differential diagnosis for a solitary intraneural variant of neurofibroma arising in the floor of the mouth is broad and includes a submandibular gland neoplasm and adenopathy, among others. The intraoral approach is the best choice for a medium-sized lesion. Read More

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http://dx.doi.org/10.1186/s12903-019-0888-0DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6714308PMC
August 2019
3 Reads

Pediatric Trigeminal Schwannoma: From a "Minimally Invasive" to a Combined Endovascular and Surgical Management.

World Neurosurg 2019 09;129:552-554

Department of Experimental Biomedicine and Clinical Neurosciences, School of Medicine, Postgraduate Residency Program in Neurological Surgery, Neurosurgical Clinic, AOUP "Paolo Giaccone", Palermo, Italy. Electronic address:

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http://dx.doi.org/10.1016/j.wneu.2019.05.079DOI Listing
September 2019
1 Read

Oculomotor schwannoma causing a progressive complete third-nerve palsy.

BMJ Case Rep 2019 Aug 13;12(8). Epub 2019 Aug 13.

Department of Neurosurgery, Cardiff and Vale University Health Board, Cardiff, UK.

A 69-year-old woman presented with an 8-month history of diplopia and examination findings consistent with a right third-nerve palsy. Head MRI identified the presence of a 5.8 mm, nodular, isointense lesion in the suprasellar cistern, which demonstrated enhancement with gadolinium contrast. Read More

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http://dx.doi.org/10.1136/bcr-2019-230272DOI Listing

Hearing preservation in vestibular schwannoma surgery via retrosigmoid transmeatal approach.

Acta Neurochir (Wien) 2019 11 7;161(11):2265-2269. Epub 2019 Aug 7.

Department of Neurosurgery, Tokyo Medical University, No. 6-7-1 Nishi-shinjuku, Shinjuku-ku, Tokyo, 160-0023, Japan.

Background: Advances in various diagnostic and/or treatment modalities, including radiological imaging, neuromonitoring, and microsurgical techniques, have resulted in treatments of vestibular schwannomas being aimed at preserving facial and hearing functions while achieving optimal tumor control.

Method: We describe our surgical technique for hearing preservation in vestibular schwannoma surgery.

Conclusion: The retrosigmoid transmeatal approach under continuous neuromonitoring (auditory brainstem response, cochlear nerve action potentials, and continuous facial nerve monitoring) enables gross-total resection of vestibular schwannomas, while preserving hearing and facial functions. Read More

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http://dx.doi.org/10.1007/s00701-019-04034-9DOI Listing
November 2019
1 Read

Twelve-year results of LINAC-based radiosurgery for vestibular schwannomas.

Strahlenther Onkol 2020 Jan 5;196(1):40-47. Epub 2019 Aug 5.

Radiotherapy Oncology Centre, "S. Maria" Hospital, Via T. di Joannuccio, 1, 05100, Terni, Italy.

Purpose: To report long-term outcomes of 53 patients with vestibular schwannomas (VS) submitted to a single high-dose LINAC-based radiosurgery (SRS) in our institution.

Methods: 48 (92%) patients were evaluable for clinical and MRI response as well as late toxicity. At a median follow-up of 12 years (range 2-16 years), local control (LC), hearing capacity, trigeminal and facial nerve function, and toxicity were assessed. Read More

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http://dx.doi.org/10.1007/s00066-019-01498-7DOI Listing
January 2020
1 Read

Intracranial cellular schwannomas: a clinicopathological study of 20 cases.

Histopathology 2020 Jan 13;76(2):275-282. Epub 2019 Nov 13.

Department of Pathology, Johns Hopkins University, Baltimore, MD, USA.

Aims: Cellular schwannoma is a specific subtype of schwannoma, prone to misinterpretation as a malignant neoplasm. Involvement of the intracranial compartment by these tumours is extremely rare. We aim to characterise this clinicopathological subgroup. Read More

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http://dx.doi.org/10.1111/his.13967DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6993901PMC
January 2020
4 Reads

Large Intraosseous Schwannoma in Petrous Apex Presenting with Intratumoral Hemorrhage.

World Neurosurg 2019 Nov 31;131:53-57. Epub 2019 Jul 31.

Department of Neurosurgery, Graduate School of Medical and Dental Sciences, Kagoshima University, Kagoshima, Japan.

Background: Intracranial schwannomas are rarely confined to the skull. We here report a large schwannoma localized in the petrous apex that presented with intratumoral hemorrhage.

Case Description: A 35-year-old woman with mild hearing disturbance and ear fullness underwent computed tomography scan and magnetic resonance imaging, which demonstrated a tumor accompanied with intratumoral hematoma in the right petrous apex. Read More

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http://dx.doi.org/10.1016/j.wneu.2019.07.179DOI Listing
November 2019

Hemifacial Spasm Caused by Small Epidermoid Tumor, Misinterpreted as Delayed Secondary Hemifacial Spasm Caused by Vestibular Schwannoma Treated with Gamma Knife Surgery.

World Neurosurg 2019 Oct 23;130:410-414. Epub 2019 Jul 23.

Brain Tumor Clinic and Gamma Knife Center, Department of Neurosurgery, Chonnam National University Research Institute of Medical Sciences, Chonnam National University Hwasun Hospital and Medical School, Hwasun-gun, Jeollanam-do, South Korea.

Background: Hemifacial spasm (HFS), one of the most common hyperactive cranial rhizopathies, is a disorder characterized by spontaneous, intermittent, and repetitive contraction of unilateral facial muscle. The most common cause of HFS is a mechanical compression of the facial nerve at the root exit zone (REZ) by blood vessels located in the brainstem. The incidence of cerebellopontine angle (CPA) tumor-induced HFS ranges from 0. Read More

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http://dx.doi.org/10.1016/j.wneu.2019.07.119DOI Listing
October 2019
3 Reads

A rare case of a giant tentorial bicompartmental cystic schwannoma unrelated to the cranial nerves.

Neurol India 2019 May-Jun;67(3):932-933

Department of Neurological Sciences, Christian Medical College, Vellore Tamil Nadu, India.

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http://dx.doi.org/10.4103/0028-3886.263175DOI Listing

Cochlear Erosion due to a Facial Nerve Schwannoma.

J Int Adv Otol 2019 Aug;15(2):330-332

Department of ENT-HNS, European Institute for Otorhinolaryngology-Head and Neck Surgery and Skull Base Surgery, Sint Augustinus Hospital, GZA, Antwerp, Belgium.

Facial nerve schwannomas are rare benign neoplasms. We report a case of a 60-year-old woman who initially presented with vestibular complaints. Magnetic resonance imaging (MRI) revealed a facial nerve schwannoma centered on the right geniculate ganglion extending in the labyrinthine segment. Read More

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http://dx.doi.org/10.5152/iao.2019.5304DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6750781PMC
August 2019
7 Reads

Tympanic-mastoid and parotid schwannomas of the facial nerve: clinical presentation related to the anatomic site of origin.

Cir Cir 2019 ;87(4):377-384

Consultorio Privado, Oaxaca. México.

Objective: To describe the clinical presentation of the facial nerve schwannomas according to the anatomical site of origin.

Method: A retrospective study in which the clinical presentation, diagnostic protocol and treatment of facial nerve tumors in adults was evaluated.

Results: We found 6 cases, 4 cases of tympanic-mastoid location at the spectrum of its possible clinical presentation: from symptomatic cases with facial paralysis, to an asymptomatic case in the tympanic portion found as intraoperative finding; and also found two cases located at the parotid gland, one with complete facial paralysis and one without facial palsy. Read More

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http://dx.doi.org/10.24875/CIRU.19000449DOI Listing
January 2020
7 Reads

Intraoperative mapping and monitoring of sensory vagal fibers during vagal schwannoma resection.

Laryngoscope 2019 12 18;129(12):E434-E436. Epub 2019 Jun 18.

the Department of Intraoperative Neurophysiology, Mount Sinai West Hospital, New York, New York, U.S.A.

Vagal schwannomas are rare, benign tumors. Intermittent intraoperative neuromonitoring via selective stimulation of splayed motor fibers running on the schwannoma surface to elicit a compound muscle action potential has been previously reported as a method of preserving vagal motor fibers. In this case report, vagal sensory fibers are mapped and continuously monitored intraoperatively during high vagus schwannoma resection using the laryngeal adductor reflex (LAR). Read More

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http://dx.doi.org/10.1002/lary.28147DOI Listing
December 2019
4 Reads

Middle Fossa Approach With Anterior Petrosectomy for Resection of a Meningioma Mimicking a Trigeminal Schwannoma, a Step-by-Step Surgical and Anatomical Description: 2-Dimensional Operative Video.

Oper Neurosurg (Hagerstown) 2019 Jul;17(1):E12-E13

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

Selected upper cerebellopontine angle (CPA)/petroclival region lesions can be visualized and resected through a middle fossa approach with anterior petrosectomy. This approach is particularly well suited for tumors that extend from the CPA into Meckel's cave or the middle cranial fossa. We present the case of a 55-yr-old man who presented with sudden left-sided hearing loss, with complete recovery after medical treatment. Read More

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http://dx.doi.org/10.1093/ons/opy313DOI Listing
July 2019
7 Reads

Protein profiling of cerebrospinal fluid from patients undergoing vestibular schwannoma surgery and clinical significance.

Biomed Pharmacother 2019 Aug 27;116:108985. Epub 2019 May 27.

Department of Neurosurgery, Huashan Hospital, Fudan University, China. Electronic address:

Vestibular schwannoma (VS) is a common disease in the region of the cerebellopontine angle in the posterior cranial fossa. Large VS and its surgical management usually lead to severe cranial nerve dysfunction and affect the patient's quality of life. We aimed to find some possible progression markers of VS. Read More

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http://dx.doi.org/10.1016/j.biopha.2019.108985DOI Listing
August 2019
4 Reads
2.023 Impact Factor

Microsurgical and Endoscope Assisted Resection of a Right Intracanalicular Vestibular Schwannoma Two-Dimensional Operative Video.

J Neurol Surg B Skull Base 2019 Jun 24;80(Suppl 3):S288-S289. Epub 2019 Jan 24.

Department of Neurosurgery, University of Washington, Seattle, Washington, United States.

A 36-year-old lady presented with tinnitus and hearing loss for 1 year which was progressively worsening. A hearing test revealed pure tone average (PTA) between 48 to 65 dB and speech discrimination of 56% at 95 dB. Brain magnetic resonance imaging (MRI) showed a right vestibular schwannoma 5 × 8 mm ( Fig. Read More

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http://dx.doi.org/10.1055/s-0038-1676840DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6534651PMC
June 2019
15 Reads

Main Symptom that Led to Medical Evaluation and Diagnosis of Vestibular Schwannoma and Patient-Reported Tumor Size: Cross-sectional Study in 1,304 Patients.

J Neurol Surg B Skull Base 2019 Jun 9;80(3):316-322. Epub 2018 Oct 9.

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

 Although vestibular schwannomas (VS) are known to cause cranial nerve deficits, cerebellar symptoms, and hydrocephalus, the role of these symptoms as the key driver of presentation from the patient's perspective has not been described. Our objective was to survey a large, retrospective VS cohort to document the patient-reported principal initial symptom, and self-reported tumor size, and to study trends in VS patient presentation.  Patients diagnosed with VS at our tertiary referral center and belonging to the Acoustic Neuroma Association (ANA) answered a questionnaire between 2015 and 2017. Read More

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http://dx.doi.org/10.1055/s-0038-1675175DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6534738PMC
June 2019
9 Reads

Microsurgical Management of Trigeminal Schwannoma: Cohort Analysis and Systematic Review.

J Neurol Surg B Skull Base 2019 Jun 28;80(3):264-269. Epub 2018 Aug 28.

Department of Neurosurgery, Santa Paula Hospital, São Paulo, São Paulo, Brazil.

 Trigeminal schwannomas are benign tumors with a predilection for women between 40 and 60 years of age and account for less than 0.5% of all intracranial tumors. Clinical presentation depends on size and location, and typical symptoms are ipsilateral hypesthesia, headache, and facial pain. Read More

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http://dx.doi.org/10.1055/s-0038-1669418DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6534735PMC
June 2019
15 Reads

Oculomotor Schwannomas: A Systematic Review and Report of Two Pediatric Cases Treated with Fractionated Cyberknife Stereotactic Radiotherapy.

World Neurosurg 2019 Sep 21;129:487-496. Epub 2019 May 21.

Department of Neurological Surgery, University of Texas Southwestern, Dallas, Texas, USA; Department of Radiation Oncology, University of Texas Southwestern, Dallas, Texas, USA.

Objective: Pediatric oculomotor nerve schwannomas are rare and challenging lesions due to the high morbidity associated with surgical intervention and their proximity to critical structures limiting the opportunity for stereotactic radiosurgery. We aim to report and review the novel use of fractionated Cyberknife (Accuray, Inc., Sunnyvale, California, USA) stereotactic radiotherapy in pediatric patients with oculomotor schwannomas. Read More

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http://dx.doi.org/10.1016/j.wneu.2019.05.114DOI Listing
September 2019
6 Reads

Acute Presentation of Vestibular Schwannoma Secondary to Intratumoral Hemorrhage: A Case Report and Literature Review.

World Neurosurg 2019 Sep 17;129:157-163. Epub 2019 May 17.

Department of Neurosurgery, Tulane Medical Center, New Orleans, Louisiana, USA. Electronic address:

Background: Vestibular schwannomas (VS) are common slow-growing tumors that typically present with the insidious progression of unilateral hearing loss, tinnitus, vertigo, and gait imbalance. Clinically significant intratumoral acute hemorrhage is exceedingly rare and can present with the acute onset of symptoms, neurologic deterioration, and significant dysfunction of cranial nerves VII and VIII. We discuss a 40-year-old man who developed mild hearing loss and headaches over the course of a month before presenting with a large acutely hemorrhagic vestibular schwannoma. Read More

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http://dx.doi.org/10.1016/j.wneu.2019.05.075DOI Listing
September 2019
8 Reads
2.417 Impact Factor

Successful Surgery of Exophytic Brainstem Glioma Mimicking Cerebellar-Pontine Angle Tumor: Case Report and Review of Literature.

World Neurosurg 2019 Aug 14;128:202-205. Epub 2019 May 14.

Neurosurgical Department, Erlangen University Clinic, Neuroradiological Department, University Hospital Erlangen, Germany.

Background: Nontectal plate exophytic brainstem gliomas with pilocytic histology are rare and occur mainly in children. Because of their eloquent location, therapy usually consists of bioptic histologic verification and radiotherapy in case of progression.

Case Description: We report on a 43-year-old patient who presented with intermittent tinnitus and reduced hearing in his left ear, as well as a slight left-sided ataxia. Read More

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http://dx.doi.org/10.1016/j.wneu.2019.05.053DOI Listing
August 2019
6 Reads

Schwannoma of the extracranial portion of the accessory nerve presenting as spinal adenopathy.

BMJ Case Rep 2019 May 13;12(5). Epub 2019 May 13.

Department of Otorhinolaryngology, Hopital du 20 Aout, Casablanca, Morocco.

Schwannomas are benign tumours arising from Schwann cells in the peripheral nerve. The schwannoma of the accessory nerve is a very rare entity. We report a case of Schwannoma of the extracranial accessory nerve. Read More

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http://dx.doi.org/10.1136/bcr-2018-228647DOI Listing
May 2019
2 Reads

Trigeminal Ganglion Metastasis of Renal Clear Cell Carcinoma: Cases Report and Review of the Literature.

World Neurosurg 2019 Aug 3;128:541-546. Epub 2019 May 3.

Department of Neurotrauma/Neurosurgery, Nantes University Hospital, Saint-Herblain, France.

Background: The trigeminal ganglion is an atypical site for metastasis, especially for renal clear cell carcinoma.

Case Description: We report 2 clinical cases of a 66-year-old man and a 58-year-old man with trigeminal symptoms. Both patients had a history of renal clear cell (RCC) that was considered to be cured at 6 and 9 years, respectively. Read More

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http://dx.doi.org/10.1016/j.wneu.2019.04.230DOI Listing
August 2019
13 Reads

Schwannomatosis of the Spinal Accessory Nerve: A Case Report.

J Brachial Plex Peripher Nerve Inj 2019 Jan 26;14(1):e9-e13. Epub 2019 Apr 26.

Department of Neurological Surgery, University of California, San Francisco, California, United States.

Schwannomatosis is a distinct syndrome characterized by multiple peripheral nerve schwannomas that can be sporadic or familial in nature. Cases affecting the lower cranial nerves are infrequent. Here, the authors present a rare case of schwannomatosis affecting the left spinal accessory nerve. Read More

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http://www.thieme-connect.de/DOI/DOI?10.1055/s-0039-1685457
Publisher Site
http://dx.doi.org/10.1055/s-0039-1685457DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6486389PMC
January 2019
4 Reads

A 17-Year-Old Girl With Unilateral Headache and Double Vision.

J Investig Med High Impact Case Rep 2019 Jan-Dec;7:2324709619838309

1 Duke University School of Medicine, Durham, NC, USA.

Tolosa-Hunt syndrome is characterized by a painful ophthalmoplegia secondary to a granulomatous inflammation in or adjacent to the cavernous sinus. Magnetic resonance imaging will show enhancement of the cavernous sinus and/or the orbital apex. Although this syndrome is extremely rare in children, it should be a diagnostic consideration in patients presenting with painful ophthalmoplegia with variable involvement of cranial nerves II to VI. Read More

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http://dx.doi.org/10.1177/2324709619838309DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6480981PMC
May 2020
10 Reads

Resection of Pediatric Trigeminal Schwannoma Using Minimally Invasive Approach: Case Report, Literature Review, and Operative Video.

World Neurosurg 2019 Jul 19;127:518-524. Epub 2019 Apr 19.

Department of Neurosurgery, University of Oklahoma Health Sciences Center, Oklahoma City, Oklahoma, USA. Electronic address:

Background: Trigeminal schwannomas are fifth cranial nerve tumors that originate from the nerve sheath. They rarely occur within the pediatric population and can cause dysfunction of the trigeminal nerve and surrounding structures. When patients become symptomatic, neurosurgeons should consider resection. Read More

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https://linkinghub.elsevier.com/retrieve/pii/S18788750193110
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http://dx.doi.org/10.1016/j.wneu.2019.04.113DOI Listing
July 2019
21 Reads

A Facial Nerve Schwannoma Presenting as an External Auditory Canal Mass.

Ear Nose Throat J 2019 Mar 30;98(3):123-125. Epub 2019 Jan 30.

1 Division of Otology, Department of Otolaryngology-Head and Neck Surgery, Chang Gung Memorial Hospital, Linkou, Taiwan.

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http://dx.doi.org/10.1177/0145561318824893DOI Listing
March 2019
7 Reads