2,273 results match your criteria Imaging in Cranial Nerve Schwannoma


Letter to the Editor Regarding "Surgical Treatment of Trochlear Nerve Schwannomas: Case Series and Systematic Review".

World Neurosurg 2022 Jul;163:144

Department of Neurological Surgery, University of Washington, Seattle, Washington, USA.

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[Vestibular schwannomas - baseline and progress diagnostics].

Laryngorhinootologie 2022 Jun 20;101(6):518-538. Epub 2022 Jun 20.

Klinik und Poliklinik für Hals-, Nasen- und Ohrenheilkunde, Universitätsklinikum Carl Gustav Carus, Dresden.

Vestibular (vestibulocochlear) schwannomas are rare, benign schwannomas of the cerebellopontine angle, the internal auditory canal, or the inner ear. They can occur with or without clinical symptoms. The most common symptoms are unilateral or side-differentiated hearing loss with or without tinnitus and balance disorders. Read More

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Complex Neurovascular Syndromes: Is the Compressing Vessel Alone the Culprit?

J Neurosci Rural Pract 2022 Apr 28;13(2):283-289. Epub 2022 Mar 28.

Department of Neuro and Spine Surgery, Neuro World and Suchirayu Hospital, Hubli, Karnataka, India.

 To describe and correlate the clinical, radiological, and intraoperative findings in patients with refractory neurovascular syndromes (NVS) not responding to conventional medical management and to determine the surgical outcome of the microvascular decompression (MVD) procedure. Medical records of 17 patients with NVS (trigeminal neuralgia [TN] = 14 and hemifacial spasm = 3) who underwent surgery for symptom relief from January 2018 to July 2021 with follow-up data (1-36 months) were retrospectively analyzed. Patient demographics (age, sex), clinical features (site, duration of symptoms, distribution), magnetic resonance imaging (MRI) findings, micro-neurosurgical details (type of surgery, obstructive vessel), and postoperative outcome and complications were recorded. Read More

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Case Report: Extensive Temporal Bone Invasion in a Giant Vestibular Schwannoma.

Front Surg 2022 25;9:759163. Epub 2022 May 25.

Department of Neurosurgery, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China.

Background: Rare giant vestibular schwannomas (GVSs) invade the temporal bone extensively, which carries unique risks for surgery owing to their complicated relationship with adjacent structures, difficult dissection of the temporal bone, and high risk of complications. The underlying mechanism of this invasive behavior remains unknown.

Case Description: We report on a 28-year-old woman who presented with typical hearing loss and facial paralysis (House-Brackmann II). Read More

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Benign Peripheral Non-cranial Nerve Sheath Tumors of the Neck.

Adv Ther 2022 Jun 11. Epub 2022 Jun 11.

Coordinator of the International Head and Neck Scientific Group, Padua, Italy.

Benign peripheral non-cranial nerve sheath tumors are rare lesions, including both schwannomas and neurofibromas. These tumors arise from Schwann cells, and may originate from any peripheral, cranial, or autonomic nerve. Most of them are localized and sporadic but multifocal systemic forms can occur. Read More

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Adenoid cystic carcinoma of jugular foramen.

Radiol Case Rep 2022 Aug 29;17(8):2635-2638. Epub 2022 May 29.

Resident Clémentine MAHEO, Hopital Morvan, CHRU de Brest, 2 Avenue Foch, Brest, Bretagne 29200, France.

Adenoid cystic carcinoma is a slowly growing malignant tumor with high local recurrence, perineural and vascular invasion. This tumor might arise from the glands of upper respiratory tract and oral cavity (eg, salivary or serous or mucous). Here we report the case of a 65-year-old woman who was referred to our unit for left retro-auricular radiating pain with trigger points and frontal headache since 6 months. Read More

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Diagnostic controversies in recurrent painful ophthalmoplegic neuropathy: single case report with a systematic review.

Ital J Pediatr 2022 Jun 3;48(1):82. Epub 2022 Jun 3.

Department of Clinical and Experimental Medicine, Unit of Rare Diseases of the Nervous System in Childhood, Section of Paediatrics and Child Neuropsychiatry, University of Catania, Catania, Italy.

Background: Ophthalmoplegic migraine, renamed "Recurrent Painful Ophthalmoplegic Neuropathy" (RPON) in 2013 by the International Headache Society is a rare neurologic disorder characterized by recurrent attacks of ophthalmoplegia associated to ipsilateral headache. The etiology is still unknown. Typical magnetic resonance imaging findings show a focal nerve thickening and contrast enhancement. Read More

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Markedly asymmetric facial nerve hypertrophy simulating a schwannoma in a patient with Charcot-Marie-Tooth disease.

Am J Otolaryngol 2022 Jul-Aug;43(4):103513. Epub 2022 May 22.

Department of Otolaryngology-Head and Neck Surgery, Mayo Clinic, Rochester, MN, United States of America. Electronic address:

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Middle cranial fossa trigeminal schwannoma resection through endoscopic transnasal maxillary sinus approach: A case report and literature review.

Exp Ther Med 2022 Jun 21;23(6):405. Epub 2022 Apr 21.

Department of Neurosurgery, Chongqing General Hospital, University of Chinese Academy of Sciences, Chongqing 401147, P.R. China.

The endoscopic transnasal maxillary sinus approach is usually performed in resecting tumors located in the pterygopalatine fossa and infratemporal fossa, but is rarely used in the resection of lesions in the middle cranial fossa. Because of the complicated anatomical structure of the middle cranial fossa, trigeminal schwannomas (TSs) located in this region are usually dissected through conventional craniotomy surgical approaches; however, the endoscopic transnasal maxillary sinus approach can be used in resection of middle cranial fossa TSs. The current study presented the case of a 59-year-old man who suffered intermittent headaches for 2 years without other notable medical history and neurological abnormalities. Read More

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Malignant Nerve Sheath Tumor of the Hypoglossal Nerve in a Maltese Dog.

J Am Anim Hosp Assoc 2022 May;58(3):137-140

From AniCura I Portoni Rossi Veterinary Hospital, Zola Predosa, Italy (R.B., L.B., F.B., J.A., M.B.).

A 4 yr old male Maltese dog presented with a 1 wk history of intermittent neck pain and progressive difficulty walking. Neurologic evaluation was consistent with a left-sided brainstem lesion. On oral examination, left lingual hemiatrophy was evident suggesting hypoglossal nerve involvement. Read More

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Surgical Resolution of Trigeminal Neuralgia Complicating Vestibular Schwannoma Removal.

World Neurosurg 2022 May 12;164:199-202. Epub 2022 May 12.

Neurosurgical Clinical Department of Neuroscience, Psychology, Pharmacology and Child Health, University of Florence, Florence, Italy.

This work illustrates the case of surgical treatment of trigeminal neuralgia (TN), as a tardive complication after vestibular schwannoma (VS) removal (Koos III, Figure 1), in a female patient. After VS surgery, the postoperative computed tomography scan did not show any significant complication, although a thin blood clot was present in the surgical bed (Figure 2). However, 3 months later, our patient developed a TN involving the territories V2-V3. Read More

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Unilateral glossodynia as a harbinger of an occult cerebellopontine angle tumour.

BMJ Case Rep 2022 Apr 12;15(4). Epub 2022 Apr 12.

Orofacial Pain Clinic, Department of Oral Medicine and Oral Surgery, Hopital Bretonneau, AP-HP, Paris, France

A woman in her late 80s with severe bronchomalacia was referred to a tertiary orofacial pain clinic for unexplained right unilateral glossodynia of progressive and continuous evolution for the past 8 months, spreading to the ipsilateral labiomental region, associated with ipsilateral hypoacusia. Local and general clinical examinations were unremarkable and routine blood work could not reveal any underlying systemic disease explaining the glossodynia and burning/pricking labiomental pain. Suspecting a painful trigeminal neuropathy secondary to a space-occupying lesion, a cerebral MRI was prescribed, revealing an ipsilateral cerebellopontine angle lesion, compatible with either a schwannoma or meningioma. Read More

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[«Burr hole» microsurgery for vestibular schwannoma].

Zh Vopr Neirokhir Im N N Burdenko 2022 ;86(2):5-14

Burdenko Neurosurgical Center, Moscow, Russia.

Objective: To evaluate the efficacy and safety of minimally invasive «burr hole» microsurgery for vestibular schwannoma.

Material And Methods: A retrospective analysis of postoperative outcomes in 50 consecutive patients with vestibular schwannoma was performed. All patients underwent burr hole microsurgery between 2016 and 2020. Read More

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Stereotactic radiosurgery for hypoglossal schwannoma.

BMJ Case Rep 2022 Apr 11;15(4). Epub 2022 Apr 11.

University of Virginia, Charlottesville, Virginia, USA

Hypoglossal schwannomas (HS) are extremely rare neoplasms. Surgical resection has historically been the treatment of choice but carries a significant risk of postoperative neurological deficits and mortality. Stereotactic radiosurgery (SRS) is a minimally invasive approach that may afford long-term tumour growth. Read More

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Challenging diagnosis of cervical vagal nerve schwannoma.

J Surg Case Rep 2022 Apr 3;2022(4):rjac084. Epub 2022 Apr 3.

Department of Pathology, Medical Academy, Hospital of Lithuanian University of Health Sciences, Kaunas, Lithuania.

Schwannoma arising from vagal nerve is a rare tumour. It is a slow-growing, benign mass, but rarely it might undergo malignant transformation. We report a case of a 55-year-old woman with asymptomatic Xth cranial nerve schwannoma in the left side of the neck. Read More

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Sporadic Vestibular Schwannoma Size and Location Do not Correlate With the Severity of Hearing Loss at Initial Presentation.

Front Oncol 2022 15;12:836504. Epub 2022 Mar 15.

Department of Otolaryngology-Head and Neck Surgery and Eaton-Peabody Laboratories, Massachusetts Eye and Ear, Boston, MA, United States.

Vestibular schwannoma (VS) is a non-malignant intracranial neoplasm arising from the vestibular branch of the 8th cranial nerve; sensorineural hearing loss (SNHL) is the most common associated symptom. Understanding whether VS imaging characteristics at the time of VS diagnosis can be associated with severity of VS-induced SNHL can impact patient counseling and define promising areas for future research. Patients diagnosed with VS at Massachusetts Eye and Ear (MEE) from 1994 through 2018 were analyzed if magnetic resonance imaging at VS presentation and sequential audiometry were available. Read More

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Schwannoma-associated third nerve palsy: A pediatric case report.

Heliyon 2022 Apr 30;8(4):e09211. Epub 2022 Mar 30.

Indiana University School of Medicine, Riley Hospital for Children, Indianapolis, IN, United States.

Acquired third nerve palsies are infrequently seen in children, but are often associated with serious pathologies. This article presents a pediatric case of tumor-associated, isolated third nerve palsy, which took two years to diagnose. The patient initially presented with an isolated, dilated pupil and progressed over several months to a complete third nerve palsy. Read More

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Commentary: Resection of a Vestibular Schwannoma Using the Retrosigmoid Approach in a Patient With a High Jugular Bulb: 2-Dimensional Operative Video.

Oper Neurosurg (Hagerstown) 2022 05;22(5):e229-e230

Department of Neurosurgery, Huashan Hospital, Fudan University, Shanghai, China.

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Surgical Technique and Nuances of Resection of a Trochlear Schwannoma: Operative Video.

World Neurosurg 2022 Jun 15;162:73. Epub 2022 Mar 15.

Department of Neurosurgery, Rutgers, Robert Wood Johnson Medical School & University Hospital, New Brunswick, New Jersey, USA. Electronic address:

Cranial nerve schwannomas accounts for around 8% of all benign intracranial tumors, arising most commonly from the vestibular nerve, followed by the trigeminal nerve and other lower cranial nerves. However, trochlear schwannoma in a patient without neurofibromatosis-2 are extremely rare and to date, fewer than 100 cases have been reported in the literature. They are either asymptomatic or present with ophthalmologic or neurologic symptoms. Read More

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Surgical Treatment of Trochlear Nerve Schwannomas: Case Series and Systematic Review.

World Neurosurg 2022 Jun 9;162:e288-e300. Epub 2022 Mar 9.

Department of Neurosurgery, Yeditepe University School of Medicine, Istanbul, Turkey. Electronic address:

Background And Objective: Cranial nerve schwannomas almost always arise from sensory or mixed nerves. Motor cranial nerves, such as the trochlear nerve, are rarely associated with schwannomas. No consensus has yet been made for surgical intervention because of the low number of reported cases of trochlear nerve schwannomas. Read More

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Intra-cerebellar schwannoma with various degenerative changes: a case report and a systematic review.

BMC Neurol 2022 Feb 24;22(1):66. Epub 2022 Feb 24.

Department of Diagnostic Pathology, Kyoto University Graduate School of Medicine, 54 Shogoin Kawahara-cho, Sakyo-ku, 606-8507, Kyoto, Japan.

Background: Intra-cranial schwannomas account for less than 8% of brain tumors, among which more than 80% arise from the vestibular nerve. Intra-cerebellar schwannomas are extremely rare. Several cases have been previously reported but without remarkable degenerative changes on histology. Read More

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February 2022

Diagnostic Value of Preoperative Electrodiagnostic Analysis in a Patient with Facial Palsy and a Large Vestibular Schwannoma: Case Report.

Authors:
Myung Chul Yoo

Diagnostics (Basel) 2022 Feb 20;12(2). Epub 2022 Feb 20.

Department of Physical Medicine and Rehabilitation, College of Medicine, Kyung Hee University Hospital, 23 Kyung Hee Dae-ro, Dongdaemun-gu, Seoul 02447, Korea.

Although radiologic methods confirm the diagnosis of patients with large vestibular schwannomas, these methods usually indicate only the size of the tumor and its possible nerve compression. Electrodiagnostic methods can reveal the functional state of the nerves, particularly the trigeminal and facial nerves, as well as providing a basis for objectively evaluating nerve injury. Due to the lack of an established objective evaluation method, electrodiagnostic methods were utilized to assess injury to the cranial nerve in a patient with a large vestibular schwannoma. Read More

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February 2022

Facial Nerve Schwannoma Resection and Nerve Anastomosis in 1 Stage by Translabyrinthine Approach.

World Neurosurg 2022 May 22;161:104. Epub 2022 Feb 22.

Department of Neurosurgery, Xuanwu Hospital, Capital Medical University, Beijing, China; China International Neuroscience Institute, Beijing, China. Electronic address:

Facial nerve schwannomas (FNS) are rare benign tumors that can develop in any segment of the facial nerve. Patients often experience facial palsy and hearing loss after FNS removal or even before surgery. Double-stage treatment is usually necessary for tumor resection and reconstruction of facial nerve function. Read More

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Intracapsular Micro-Enucleation of a Painful Superficial Peroneal Nerve Schwannoma in a 60-Year Old Man: A Rare Encounter.

Am J Case Rep 2022 Feb 24;23:e936056. Epub 2022 Feb 24.

Department of Neurosurgery, Ibn Sina Hospital, Ministry of Health, Kuwait City, Kuwait.

BACKGROUND Schwannomas are the most common benign peripheral nerve sheath tumors, localized mainly to the cranial and upper extremity nerves. Their occurrence in the lower limbs is uncommon, and specific involvement of the superficial peroneal nerve is exceedingly rare. We report a case of a painful right superficial peroneal nerve schwannoma that was excised via the intracapsular micro-enucleation technique. Read More

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February 2022

Middle Fossa Approach for Resection of a Giant Trigeminal Schwannoma Through an Expanded Meckel Cave: 2-Dimensional Operative Video.

Oper Neurosurg (Hagerstown) 2022 03;22(3):e122-e123

Department of Neurosurgery, Brigham and Women's Hospital, Harvard Medical School, Boston, Massachusetts, USA.

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Abnormal Schwannoma-like Growth of multiple, multifocal BRAF V600E-positive Glioblastoma in the Interior Acoustic Canal with Leptomeningeal Infiltration: a case report.

J Med Case Rep 2022 Feb 8;16(1):50. Epub 2022 Feb 8.

Department Radiology, Kantonsspital Frauenfeld, Spital Thurgau AG, 8501, Frauenfeld, Switzerland.

Background: Glioblastoma belongs to the most common and most aggressive tumor entity of the central nervous system with a poor prognosis of only few months. Once manifested, it grows fast and diffusely by infiltrating the surrounding brain parenchyma. Despite its aggressive behavior, glioblastoma rarely presents with multiple lesions and metastasis to intra- and extracranial tissues. Read More

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February 2022

Pre-operative embolization and excision of vagal schwannoma with rich vascular supply: A case report and literature review.

Medicine (Baltimore) 2022 Jan;101(4):e28760

Department of Oral and Maxillofacial of Peking University International Hospital, China.

Rationale: Schwannomas are benign tumors wrapped in the nerve sheath and can originate from the myelin sheath of the cranial nerve. In previous literature reports, most of the tumors were solid tumors, which can be removed only by surgery. This case report describes a unique case of vagal schwannoma, which, unlike previous cases, involves a dominant arterial supply, and discusses the pre-operative evaluation, relevant radiographic findings, and surgical process of the case in detail. Read More

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January 2022

Prevalence and natural history of schwannomas in neurofibromatosis type 2 (NF2): the influence of pathogenic variants.

Eur J Hum Genet 2022 04 24;30(4):458-464. Epub 2022 Jan 24.

Department of Otolaryngology, Manchester University NHS Foundation Trust, Manchester, UK.

This study explores the natural history of vestibular, trigeminal and lower cranial nerve schwannomas (VS, TS, LCNS) in patients with Neurofibromatosis type 2 (NF2), to understand how pathogenic variants (PVs) of the NF2 gene affect tumour burden and growth rate, via a retrospective analysis of a UK NF2 centre database and imaging. VS, TS and LCNS location and size were measured in accordance with a standardised protocol. PVs were categorised in accordance with the UK NF2 Genetic Severity Score (GSS). Read More

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Multifocal spinal glioblastoma and leptomeningeal carcinomatosis in an elderly male with hydrocephalus and myelopathy.

Surg Neurol Int 2021 8;12:595. Epub 2021 Dec 8.

Department of Neurosurgery, Upstate University Hospital, Syracuse, New York, United States .

Background: Primary spinal glioblastoma multiforme with multifocal leptomeningeal enhancement is rarely diagnosed or documented. We describe a rare case of multifocal spinal isocitrate dehydrogenase (IDH) wild type glioblastoma with leptomeningeal carcinomatosis in an elderly male presenting with a chronic subdural hematoma, progressive myelopathy, and communicating hydrocephalus.

Case Description: A 77-year-old male with a medical history of an acoustic schwannoma, anterior cranial fossa meningioma, and immune thrombocytopenic purpura presented with right-sided weakness after repeated falls. Read More

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December 2021

Far Lateral Approaches: Far Lateral Approach With Minimal Condylectomy for C2 Schwannoma: 3-Dimensional Operative Video.

Oper Neurosurg (Hagerstown) 2022 Jan;22(1):e49

Department of Neurosurgery, Addenbrooke's Hospital, Cambridge University Hospitals, Cambridge, UK.

Upper cervical schwannomas are rare lesions and together with meningiomas constitute around 5% of spinal tumors. The approach to these lesions is difficult because of the close proximity of the medulla and cervical spinal cord, lower cranial nerves, and the vertebral artery. Schwannomas in the upper cervical area typically arise from the dorsal roots and are located posterior to the dentate ligament. Read More

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January 2022