20,744 results match your criteria Neurilemmoma


A rare case of palatal schwannoma with literature review.

J Oral Maxillofac Pathol 2019 Feb;23(Suppl 1):36-39

Department of Oral Medicine and Radiology, Sree Balaji Dental College and Hospital, Chennai, Tamil Nadu, India.

Schwannoma or neurilemmoma is a benign, slow-growing nerve sheath tumor arising from Schwann cells of the cranial, peripheral or autonomic nerves. Approximately 25%-40% of schwannomas occur in the head and neck region. Occurrences of intraoral schwannomas are rare with reported prevalence being 1%. Read More

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http://dx.doi.org/10.4103/jomfp.JOMFP_242_16DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6421914PMC
February 2019

Vagal schwannomas of the head and neck: A comprehensive review and a novel approach to preserving vocal cord innervation and function.

Head Neck 2019 Apr 7. Epub 2019 Apr 7.

THANC (Thyroid, Head and Neck Cancer) Foundation, New York, New York.

Background: Schwannomas, benign tumors arising from neurolemmocytes, are the most common type of peripheral nerve tumors. Extracranial schwannomas are most often found in the parapharyngeal space, commonly involving the vagus nerve to cervical sympathetic trunk. Vagal schwannomas present several unique clinical and therapeutic challenges. Read More

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https://onlinelibrary.wiley.com/doi/abs/10.1002/hed.25758
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http://dx.doi.org/10.1002/hed.25758DOI Listing
April 2019
3 Reads

Cervical Lymph Node Schwannoma-An Unexpected Diagnosis.

Clin Pathol 2019 Jan-Dec;12:2632010X19829239. Epub 2019 Feb 27.

Department of Endocrinology, Diabetes and Metabolism, Santa Maria Hospital, Lisbon, Portugal.

Introduction: Schwannomas-Schwann cells-originating tumors-may develop in many locations. However, primary schwannomas arising within lymph nodes are extremely rare, with only a few cases described to this date in the English literature. For the intranodal location, most of the cases are described in the abdominal cavity. Read More

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http://dx.doi.org/10.1177/2632010X19829239DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6429639PMC
February 2019
1 Read

[Clinical features and surgical treatment of neurilemmoma versus carotid body tumors at bifurcation of carotid artery].

Zhejiang Da Xue Xue Bao Yi Xue Ban 2018 Dec;47(6):583-587

Department of Vascular Surgery, Zhongshan Hospital, Fudan University, Shanghai 200032, China.

Objective: To analyze clinical features, surgical treatment and outcomes of neurilemmoma and carotid body tumors in bifurcation of carotid artery.

Methods: The clinical data of 17 patients with neurilemmomas and 76 patients with carotid body tumors at the bifurcation of carotid artery, who were surgically treated in Zhongshan Hospital of Fudan University from March 2012 to November 2016, were retrospectively analyzed. The clinicopathological characteristics, surgical procedures and outcomes were compared between two groups. Read More

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December 2018

Painful tumors of the skin: "CALM HOG FLED PEN AND GETS BACK".

Clin Cosmet Investig Dermatol 2019 13;12:123-132. Epub 2019 Feb 13.

Compass Dermatopathology, San Diego, CA, USA.

Painful tumors of the skin present as dermal or subcutaneous nodules. They can originate from several sources: adipose tissue, cartilage degeneration, deposition of bone or calcium, eccrine glands, fibrous tissue, infiltration of benign (endometrium) or malignant (metastatic neoplasm) tissue, muscle, nerve, or vascular structures. Although pathologic evaluation of the lesion is necessary to determine the diagnosis, it is possible to make a reasonable differential diagnosis based on knowledge of prior tumors that have appeared as tender lesions. Read More

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https://www.dovepress.com/painful-tumors-of-the-skin-calm-ho
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http://dx.doi.org/10.2147/CCID.S193359DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6386355PMC
February 2019
6 Reads

Multiple schwannomas of the digital nerves and common palmar digital nerves: An unusual case report of multiple schwannomas in one hand.

Medicine (Baltimore) 2019 Mar;98(10):e14605

Department of Hand Surgery, The First Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou, Zhejiang Province, PR China.

Rationale: Benign schwannoma is the most common tumor of peripheral nerves while plexiform multiple schwannomas are rare conditions. This manuscript reported a case of multiple Schwannomas characterized by unusual location.

Patient Concerns: We report a 34-year-old workman presented with multiple nodules in his forefinger, middle finger and palm respectively for 5 years. Read More

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http://dx.doi.org/10.1097/MD.0000000000014605DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6417492PMC
March 2019
1 Read

Long-Term Survival after Wide Resection of Malignant Fibrous Histiocytoma of the Chest Wall.

Korean J Thorac Cardiovasc Surg 2019 Feb 5;52(1):36-39. Epub 2019 Feb 5.

Department of Thoracic and Cardiovascular Surgery, St. Paul's Hospital, College of Medicine, The Catholic University of Korea.

Primary malignant fibrous histiocytoma (MFH) of the chest wall is extremely rare and is characterized by aggressive features, including a high incidence of local recurrence and distant metastasis. Surgical resection of the chest wall is the primary modality of management. However, surgical treatment is not generally recommended in patients with evidence of distant metastasis. Read More

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http://dx.doi.org/10.5090/kjtcs.2019.52.1.36DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6383847PMC
February 2019
4 Reads

Posterior Mediastinal Schwannoma (Neurilemmoma).

Authors:
Lori A Erickson

Mayo Clin Proc 2019 Mar;94(3):559-560

Department of Laboratory Medicine and Pathology, Mayo Clinic, Rochester, MN.

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http://dx.doi.org/10.1016/j.mayocp.2019.01.019DOI Listing

Dual approach for large mediastinal tumors in the thoracic outlet: transmanubrial osteomuscular sparing approach and video-assisted thoracoscopic surgery.

J Cardiothorac Surg 2019 Feb 26;14(1):42. Epub 2019 Feb 26.

Department of Thoracic Surgery, Kyoto University, 54 Shogoin-Kawahara-cho, Sakyo-ku, Kyoto, 606-8507, Japan.

Background: Selecting the proper surgical approach for mediastinal tumors in the thoracic outlet is difficult. Video-assisted thoracoscopic surgery is ideal because of the less invasiveness; however, it is often difficult to resect tumors only by video-assisted thoracoscopic surgery due to the poor visualization of the cranial side of tumors. We report two successfully treated cases by using a dual approach consisting of the transmanubrial osteomuscular sparing technique and video-assisted thoracoscopic surgery for aiming both the less invasiveness and the good visualization of the cranial side of tumors. Read More

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http://dx.doi.org/10.1186/s13019-019-0863-5DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6390527PMC
February 2019
1 Read

Preservation of cranial nerve function following awake surgery for benign brain tumors in 22 consecutive patients.

J Clin Neurosci 2019 Mar 26;61:189-195. Epub 2018 Oct 26.

Department of Neurosurgery, Komagome Metropolitan Hospital, 3-18-22 Hon-komagome, Bunkyo-ku, Tokyo 113-8677, Japan.

Background: Preservation of cranial nerve function in patients with benign tumors such as meningiomas and vestibular schwannomas remains difficult following microsurgery.

Methods: In this study, awake surgery was performed in 22 consecutive patients with meningiomas or vestibular schwannomas that compressed cranial nerves (I-XII). Improved, unchanged, or deteriorated cranial nerve function after surgery was evaluated. Read More

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http://dx.doi.org/10.1016/j.jocn.2018.10.037DOI Listing

[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

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

Letter to the Editor Regarding "Adjunctive Gamma Knife Surgery or Wait and Scan Policy After Optimal Resection of Large Vestibular Schwannomas: Clinical and Radiologic Outcomes".

World Neurosurg 2019 02;122:719-721

Department of Clinical Neurosciences, Neurosurgery Service and Gamma Knife Center, Lausanne University Hospital, Lausanne, Switzerland; University of Lausanne (Unil), Faculty of Biology and Medicine (FBM), Lausanne, Switzerland.

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http://dx.doi.org/10.1016/j.wneu.2018.10.038DOI Listing
February 2019

Intraparotid facial nerve schwannomas.

Arch Craniofac Surg 2019 Feb 1;20(1):71-74. Epub 2019 Feb 1.

Department of Plastic and Reconstructive Surgery, Uijeongbu St. Mary's Hospital, College of Medicine, The Catholic University of Korea, Uijeongbu, Korea.

Schwannoma is a benign tumor rarely found in the head and neck and much less commonly found in the intraparotid facial nerve. It is a slow-growing encapsulated tumor originating from the Schwann cells or axonal nerve sheath. It can occur anywhere along the course of the facial nerve. Read More

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http://dx.doi.org/10.7181/acfs.2018.02250DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6411519PMC
February 2019
3 Reads

Atypical teratoid rhabdoid tumor mimicking type II neurofibromatosis: A case report.

Medicine (Baltimore) 2019 Feb;98(5):e14308

Department of Neurological Surgery, Children's Hospital, Zhejiang University School of Medicine, China.

Rationale: Brain magnetic resonance imaging (MRI) images of atypical teratoid rhabdoid tumor (ATRT) often present heterogeneous signals of various cells without remarkable features of the disease. We describe a unique case of atypical brain MRI images presenting as an type II neurofibromatosis and explore some diagnostic hints.

Patient Concerns: A 1-year-and-7-month-old boy admitted to our department with a 7-day history of drowsiness and 2-day history of emesis, and his presenting complaint was repeated vomit. Read More

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http://dx.doi.org/10.1097/MD.0000000000014308DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6380747PMC
February 2019
2 Reads

Mobile thoracic schwannoma combined with intraosseous schwannomas: A case report.

Medicine (Baltimore) 2019 Feb;98(5):e14153

Department of Orthopedics, Taizhou Municipal Hospital, Taizhou, Zhejiang, China.

Rationale: Mobile schwannomas have been rarely reported in the lumbar and thoracic spine. These entities are usually intradural extramedullary involving less than 3 vertebrae. Here, we present a rare case of thoracic schwannoma moving over 4 vertebral levels from the primary site combined with intraosseous schwannomas. Read More

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http://dx.doi.org/10.1097/MD.0000000000014153DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6380731PMC
February 2019
2 Reads

[A Case of Gastric Schwannoma with Regional Lymphadenopathy].

Gan To Kagaku Ryoho 2018 Dec;45(13):1952-1954

Dept. of Surgery, Kansai Rosai Hospital.

Schwannomas are rarely observed in the gastrointestinal tract. A 63-year-old man was referred to our hospital with gastric submucosal tumor with central ulceration by upper gastrointestinal endoscopy. Biopsy was performed, but pathological diagnosis was not obtained. Read More

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December 2018
3 Reads

Intraparenchymal schwannoma with calcification of the temporal lobe: Case report and literature review.

Medicine (Baltimore) 2019 Jan;98(4):e14263

Department of Neurosurgery.

Rationale: Intracranial schwannomas most frequently arise from the trigeminal nerve and the vestibular nerve. Schwannomas within the cerebral parenchyma are exceedingly rare. Additionally, calcification is an uncommon histopathological and radiological characteristic in schwannomas. Read More

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http://dx.doi.org/10.1097/MD.0000000000014263DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6358367PMC
January 2019
9 Reads

Should we be moving to a national standardized non-gadolinium MR imaging protocol for the surveillance of vestibular schwannomas?

Br J Radiol 2019 Apr 23;92(1096):20180833. Epub 2019 Jan 23.

1 Department of Neuroradiology, Leeds Teaching Hospitals NHS Trust , Leeds , UK.

Objectives:: To examine whether the model of Getting It Right First Time (GIRFT) could be relevant to the surveillance of non-operated vestibular schwannomas (vs) by testing the following hypotheses: (1) in the UK there is a great variation in the imaging protocol for the follow-up of vs; (2) high-resolution, T weighted MRI (HRT W-MRI) has an equivalent accuracy to gadolinium-enhanced T weighted MRI (Gd-MRI) in the assessment of vs size and; (3) imaging with HRT W-MRI rather than Gd-MRI could offer financial savings.

Methods:: Two neuroradiologists independently performed measurements of 50 vs imaged with HRT W-MRI and Gd-MRI. Differences in mean tumour measurements between HRT W-MRI and Gd-MRI were determined, as were intra- and interobserver concordance. Read More

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http://dx.doi.org/10.1259/bjr.20180833DOI Listing
April 2019
1 Read

A cerebellopontine angle mouse model for the investigation of tumor biology, hearing, and neurological function in NF2-related vestibular schwannoma.

Nat Protoc 2019 02;14(2):541-555

Edwin L. Steele Laboratories, Department of Radiation Oncology, Massachusetts General Hospital and Harvard Medical School, Boston, MA, USA.

Neurofibromatosis type II (NF2) is a disease that lacks effective therapies. NF2 is characterized by bilateral vestibular schwannomas (VSs) that cause progressive and debilitating hearing loss, leading to social isolation and increased rates of depression. A major limitation in NF2 basic and translational research is the lack of animal models that allow the full spectrum of research into the biology and molecular mechanisms of NF2 tumor progression, as well as the effects on neurological function. Read More

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http://dx.doi.org/10.1038/s41596-018-0105-7DOI Listing
February 2019
18 Reads

Brazilein induces apoptosis and G1/G0 phase cell cycle arrest by up-regulation of miR-133a in human vestibular schwannoma cells.

Exp Mol Pathol 2019 04 2;107:95-101. Epub 2019 Jan 2.

Department of Chinese Medicine, Yantai Hospital of Traditional Chinese Medicine, Yantai 264000, China. Electronic address:

Background: Acoustic neuroma is a benign and usually slow growing tumor. Brazilein is a natural compound extracted from hematoxylin. However, there has been no study of the mechanism of brazilein in acoustic neuroma cells. Read More

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https://linkinghub.elsevier.com/retrieve/pii/S00144800183039
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http://dx.doi.org/10.1016/j.yexmp.2018.12.010DOI Listing
April 2019
2 Reads

[Spinal Schwannoma with Entering-and-exiting-nerve Sign:Report of One Case].

Zhongguo Yi Xue Ke Xue Yuan Xue Bao 2018 Dec;40(6):850-852

Department of Radiology,Hainan Branch of Chinese PLA General Hospital,Sanya,Hainan 572013,China.

Peripheral neurogenic tumors can be featured by entering-and-exiting-nerve sign,which,however,is rarely seen in patients with spinal schwannoma. In this article we report a spinal schwannoma case with entering-and-exiting-nerve sign. Read More

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http://dx.doi.org/10.3881/j.issn.1000-503X.10321DOI Listing
December 2018
8 Reads

Identification of myeloid-derived suppressor cells that have an immunosuppressive function in NF2 patients.

J Cancer Res Clin Oncol 2019 Feb 2;145(2):523-533. Epub 2019 Jan 2.

Beijing Neurosurgical Institute, Capital Medical University, No. 6, Tiantan Xili, Chongwen District, Beijing, 100050, China.

Purpose: There is no targeted drug therapy for NF2 patients, and surgery or radiosurgery is not always effective. Therefore, the exploration of new therapeutic pathways is urgently needed.

Methods: We analyzed the expression of cytokines in the serum of NF2 patients and determined the percentage of HLA-DRCD33CD11b cells in blood and NF2-associated schwannomas. Read More

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http://dx.doi.org/10.1007/s00432-018-02825-8DOI Listing
February 2019
3 Reads

Milestones in stereotactic radiosurgery for the central nervous system.

J Clin Neurosci 2019 Jan 26;59:12-19. Epub 2018 Oct 26.

Department of Neurosurgery, Stanford University School of Medicine, Stanford Health Care and Stanford Children's Health, Stanford Neuroscience Health Center, 213 Quarry Road, Palo Alto, CA 94304-5979, United States.

Introduction: Since Lars Leksell developed the first stereotactic radiosurgery (SRS) device in 1951, there has been growth in the technologies available and clinical indications for SRS. This expansion has been reflected in the medical literature, which is built upon key articles and institutions that have significantly impacted SRS applications. Our aim was to identify these prominent works and provide an educational tool for training and further inquiry. Read More

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http://dx.doi.org/10.1016/j.jocn.2018.09.029DOI Listing
January 2019
4 Reads

A case of delayed hydrocephalus from cerebrospinal fluid leak after resection of a cervical spinal schwannoma.

Nagoya J Med Sci 2018 Nov;80(4):605-609

Department of Orthopedic Surgery, Nagoya University Graduate School of Medicine, Nagoya, Japan.

A 39-year old man underwent surgery for recurrence of a cervical schwannoma. At 6 months postoperatively, severe headache appeared and head CT showed marked ventricular dilation that was diagnosed as delayed hydrocephalus. Dural repair surgery using a fascia patch of the tensor fasciae latae muscle was performed after VP shunt. Read More

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http://dx.doi.org/10.18999/nagjms.80.4.605DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6295437PMC
November 2018
2 Reads

Progression of hearing loss after LINAC-based stereotactic radiotherapy for vestibular schwannoma is associated with cochlear dose, not with pre-treatment hearing level.

Radiat Oncol 2018 Dec 24;13(1):253. Epub 2018 Dec 24.

Department of Radiotherapy, Erasmus MC Cancer Institute, Postbus 2040, Rotterdam, 3000, CA, The Netherlands.

Background: Although stereotactic radiotherapy (SRT) for vestibular schwannoma has demonstrated excellent local control rates, hearing deterioration is often reported after treatment. We therefore wished to assess the change in hearing loss after SRT and to determine which patient, tumor and treatment-related factors influence deterioration.

Methods: We retrospectively analyzed progression of hearing loss in patients with vestibular schwannoma who had received stereotactic radiosurgery (SRS) or fractionated stereotactic radiotherapy (FSRT) as a primary treatment between 2000 and 2014. Read More

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http://dx.doi.org/10.1186/s13014-018-1202-zDOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6304756PMC
December 2018
1 Read

M-CSF and IL-34 expression as indicators for growth in sporadic vestibular schwannoma.

Virchows Arch 2019 Mar 22;474(3):375-381. Epub 2018 Dec 22.

Department of Pathology, Leiden University Medical Center, P.O. Box 9600, 2300 RC, Leiden, The Netherlands.

Macrophage colony stimulating factor and IL-34 are associated with clinical vestibular schwannoma progression. Investigating the biology behind vestibular schwannoma progression helps understanding tumor growth. Inflammation is important in the microenvironment of neoplasms. Read More

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http://dx.doi.org/10.1007/s00428-018-2503-1DOI Listing
March 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

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

Detection of Germline Mutations of the SMARCB1 Gene in a Chinese Family with Intraspinal Schwannomatosis.

World Neurosurg 2019 Mar 18;123:318-322. Epub 2018 Dec 18.

Department of Neurosurgery, Tianjin Medical University General Hospital, Heping District, Tianjin, China. Electronic address:

Background: Schwannomatosis is the third subtype of neurofibromatosis. Because the tumor is multiple and prone to recurrence, it often brings challenges to clinical diagnosis and treatment. In the past decade, researchers have come to realize the relationship between the SMARCB1 gene and schwannomatosis, which is expected to improve the current level of diagnosis and treatment. Read More

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https://linkinghub.elsevier.com/retrieve/pii/S18788750183282
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http://dx.doi.org/10.1016/j.wneu.2018.11.254DOI Listing
March 2019
6 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

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

A rare case of fourth ventricle schwannoma.

J Neurosurg Sci 2018 Dec;62(6):773-775

Department of Radiology, Maggiore della Carità Hospital, Università del Piemonte Orientale, Novara, Italy.

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http://dx.doi.org/10.23736/S0390-5616.17.04089-9DOI Listing
December 2018
2 Reads

Multiple intercostal neurilemmomas in a Chinese woman.

J Cancer Res Ther 2018 Dec;14(Supplement):S1220-S1222

Department of Respiratory and Critical Care Medicine, Jinling Hospital, Nanjing University Medical School, Nanjing, People's Republic of China.

Neurilemmomas are rare tumors of neural crest cell origin that occur most commonly in the head and neck region. Intercostal neurilemmomas are extremely rare and are mostly seen as solitary tumors in the posterior mediastinum. Only one case report of multiple intercostal neurilemmomas has been documented previously. Read More

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http://www.cancerjournal.net/text.asp?2018/14/7/1220/211661
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http://dx.doi.org/10.4103/jcrt.JCRT_540_16DOI Listing
December 2018
13 Reads

Differentiation between vestibular schwannomas and meningiomas with atypical appearance using diffusion kurtosis imaging and three-dimensional arterial spin labeling imaging.

Eur J Radiol 2018 Dec 12;109:13-18. Epub 2018 Oct 12.

Department of Radiology, Fujian Medical University Union Hospital, Fujian Medical University, Fuzhou, Fujian, China; School of Medical Technology and Engineering, Fujian Medical University, Fuzhou, Fujian, China. Electronic address:

Purpose: An accurate differentiation between vestibular schwannomas (VS) and meningiomas is critical in determining treatment strategies and clinical prognoses. However, misdiagnoses may occur when typical imaging appearances are absent. The purpose of this study was to assess the performances of diffusion kurtosis imaging (DKI) and three-dimensional arterial spin labeling imaging (3D-ASL) in the differentiation of VS and meningiomas with atypical appearance. Read More

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http://dx.doi.org/10.1016/j.ejrad.2018.10.009DOI Listing
December 2018
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

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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

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August 2018
14 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

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

Aural Polyp is not Always Due to Chronic Otitis Media (COM): Preoperative Computed Tomographic Scan is Good Pointer for Sinister Lesions.

Indian J Otolaryngol Head Neck Surg 2018 Dec 30;70(4):505-509. Epub 2018 Aug 30.

Department of Otorhinolaryngology, Pt. B.D. Sharma, PGIMS, Rohtak, Haryana India.

Twenty five patients of aural polyp who underwent canal wall down mastoidectomy were analysed retrospectively. Histopathological examination revealed cholesteatoma in 22 (88%) patients. However, histopathological diagnosis in 3 of these patients was unusual and rare benign tumors of the middle ear cleft-meningioma, neurilemmoma and capillary hemangioma. Read More

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http://dx.doi.org/10.1007/s12070-018-1482-5DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6224824PMC
December 2018
18 Reads

The extended posterior approach for resection of sacral tumours.

Eur Spine J 2018 Nov 20. Epub 2018 Nov 20.

Division of Spine Surgery, Department of Orthopaedics, Kasturba Medical College, Manipal Academy of Higher Education, Manipal, Karnataka, 576-104, India.

Purpose: The conventional posterior approach is mostly advocated for excision of sacral tumours below S2. We describe an operative technique of single-stage en bloc resection of sacral tumours, extending up to S1, through an extended posterior approach.

Method: Nine patients, who had undergone resection of sacral tumours, by the described technique formed the basis of this study. Read More

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http://dx.doi.org/10.1007/s00586-018-5834-3DOI Listing
November 2018
30 Reads

Piezosurgery for Infra- and Supratentorial Craniotomies in Brain Tumor Surgery.

World Neurosurg 2019 Feb 17;122:e1398-e1404. Epub 2018 Nov 17.

Department of Neurosurgery, Fondazione IRCCS Istituto Neurologico Carlo Besta, Milan, Italy.

Objective: Piezoelectric surgery represents an innovative technique to perform safe and effective osteotomies and is an alternative to traditional bony tissue management using rotating or perforating instruments. We evaluated the safety and feasibility of craniotomies using an ultrasonic device that allows the selective cut of mineralized structures, avoiding damages to the vascular, dural, and parenchymal structures.

Methods: We analyzed a series of 300 patients (age range, 1-81 years; SD ± 15. Read More

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http://dx.doi.org/10.1016/j.wneu.2018.11.064DOI Listing
February 2019
10 Reads

Fine-needle aspiration cytology versus core-needle biopsy for the diagnosis of extracranial head and neck schwannoma.

Head Neck 2018 Dec 20;40(12):2695-2700. Epub 2018 Nov 20.

Department of Pathology, School of Medicine, Kyungpook National University, Daegu, Republic of Korea.

Background: We aimed to investigate the feasibility of diagnosing head and neck schwannomas using core-needle biopsy (CNB), and to compare this technique to fine-needle aspiration cytology (FNAC).

Methods: We designed a prospective case series in which 52 FNAC and 29 CNB samples from 48 patients with head and neck schwannoma were analyzed. Patient demographics, pathological results, and complications were also evaluated. Read More

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http://dx.doi.org/10.1002/hed.25520DOI Listing
December 2018
1 Read

Long-Term Tumor Control Rates Following Gamma Knife Radiosurgery for Acoustic Neuroma.

World Neurosurg 2019 Feb 15;122:366-371. Epub 2018 Nov 15.

Department of Neurological Surgery, Keck School of Medicine, University of Southern California, Los Angeles, California, USA.

Background: Acoustic neuromas (ANs) are benign intracranial tumors that arise from myelin-forming Schwann cells surrounding the vestibular branch of the vestibulocochlear nerve (cranial nerve VIII). Treatment options for AN include observation, radiosurgery, and microsurgical resection. Gamma Knife radiosurgery (GKRS) for AN has well-documented short-term safety and efficacy for carefully selected patients. Read More

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https://linkinghub.elsevier.com/retrieve/pii/S18788750183255
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http://dx.doi.org/10.1016/j.wneu.2018.11.009DOI Listing
February 2019
11 Reads

Local Tumor Control and Clinical Symptoms After Gamma Knife Radiosurgery for Residual and Recurrent Vestibular Schwannomas.

World Neurosurg 2019 Feb 14;122:e1240-e1246. Epub 2018 Nov 14.

Department of Neurosurgery, University Hospital Münster, Münster, Germany. Electronic address:

Background: The use of Gamma Knife radiosurgery (GKRS) for recurrent or residual vestibular schwannoma (VS) after microsurgery (MS) has been investigated in several retrospective studies. The purpose of this study was to identify potential risk factors for both neurologic deterioration and tumor progression after GKRS for previously operated VSs in a prospective setting.

Methods: Patients who underwent GKRS for previously operated and histopathologically confirmed VS between 1998 and 2015 were prospectively followed-up. Read More

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https://linkinghub.elsevier.com/retrieve/pii/S18788750183256
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http://dx.doi.org/10.1016/j.wneu.2018.11.022DOI Listing
February 2019
14 Reads

Approaches for Excision of Intramasseteric Nodules.

J Craniofac Surg 2019 Jan;30(1):e92-e94

Department of Plastic and Reconstructive Surgery, National Defense Medical College, Saitama, Japan.

Developmental lesions, including benign or malignant tumors, rarely arise in the masseteric region. This retrospective study was performed to evaluate the adequacy of different surgical approaches in a series of patients with lesions in the masseteric region. The surgical methods, postoperative complications, pathological diagnosis, and aesthetic outcome were compared in 4 patients who underwent excision of intramasseteric mass lesions. Read More

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http://dx.doi.org/10.1097/SCS.0000000000005001DOI Listing
January 2019
14 Reads

Brachial Plexus Schwannoma - Case Report and Literature Review.

Acta Clin Croat 2018 Jun;57(2):366-371

Department of Pathology, Merkur University Hospital, Zagreb, Croatia.

Schwannoma as an extracranial nerve sheath tumor rarely affects brachial plexus. Due to the fact that brachial plexus schwannomas are a rare entity and due to the brachial plexus anatomic complexity, schwannomas in this region present a challenge for surgeons. We present a case of a 49-year-old female patient with a slow growing painless mass in the right supraclavicular region that was diagnosed as schwannoma and operated at our department. Read More

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http://dx.doi.org/10.20471/acc.2018.57.02.19DOI Listing
June 2018
3 Reads

Intramural schwannoma involving a vein.

J Cutan Pathol 2019 Mar 10;46(3):211-215. Epub 2018 Dec 10.

Department of Dermatology, Los Angeles Medical Center (LAMC), Southern California Kaiser Permanente, Los Angeles, California.

Schwannoma involving the blood vessels is a rare phenomenon. So far, only three cases of intravascular schwannoma have been described (all of which were intraluminal), and the origin of the schwannoma in such cases is not yet completely understood. Here, we describe a very rare intramural venous schwannoma in the subcutaneous right prepatellar area of a 31-year-old man. Read More

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http://dx.doi.org/10.1111/cup.13391DOI Listing
March 2019
2 Reads

An international comparison of diagnostic and management strategies for vestibular schwannoma.

Eur Arch Otorhinolaryngol 2019 Jan 12;276(1):71-78. Epub 2018 Nov 12.

Department of Otolaryngology, Radboud Institute for Health Sciences, Radboud University Medical Center, P.O. Box 9101, 6500 HB, Nijmegen (377), The Netherlands.

Objective: To compare international diagnostic and management strategies for vestibular schwannoma (VS).

Methods: A web-based questionnaire was sent to 130 otolaryngologists, mainly identified through the European Skull Base Society. It contained questions on general information including guideline usage as well as questions on diagnosis (focussing on selection of patients for MRI) and management of VS, including case scenarios. Read More

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http://dx.doi.org/10.1007/s00405-018-5199-6DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6338706PMC
January 2019
2 Reads

Secretory cervical schwannoma: first of its kind.

BMJ Case Rep 2018 Nov 12;2018. Epub 2018 Nov 12.

Otolaryngology (ENT), AIIMS, New Delhi, India.

Schwannomas arising from cervical sympathetic chain are rare benign neoplasms which are slow growing, usually asymptomatic, biochemically non-secretory and functionally inactive tumours. We present a case of secretory schwannoma arising from the cervical sympathetic chain, causing hypertension and associated with raised urinary catecholamine degradation by-products. Transcervical excision of the tumour was followed by normalisation of blood pressure and urinary vanillylmandelic acid levels and pathologically the tumour was proved to be a schwannoma. Read More

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http://casereports.bmj.com/lookup/doi/10.1136/bcr-2018-22522
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http://dx.doi.org/10.1136/bcr-2018-225222DOI Listing
November 2018
16 Reads

[The efficacy of botulinum therapy in treatment of delayed facial palsy after resection of vestibular schwannoma].

Zh Vopr Neirokhir Im N N Burdenko 2018;82(5):81-87

Sechenov First Moscow State Medical University, Moscow, Russia.

Delayed facial palsy is a complication developing 3 or more days after surgery. The etiology and pathogenesis of this condition has not been fully explored, and there are no treatment standards for it. As in the case of Bell's paralysis, glucocorticosteroids (GCSs) are currently used to treat delayed facial palsy. Read More

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http://dx.doi.org/10.17116/neiro20188205181DOI Listing
April 2019
13 Reads

Management of Dumbbell and Paraspinal Tumors of the Thoracic Spine Using a Single-stage Posterolateral Approach: Case Series.

Orthop Surg 2018 Nov 8;10(4):343-349. Epub 2018 Nov 8.

Department of Neurosurgery, Tianjin Medical University General Hospital, Tianjin, China.

This study investigated the surgical results of a single-stage posterolateral approach with arc incision, unilateral laminectomy, and costotransversectomy for the management of dumbbell tumors and paraspinal tumors of the thoracic spine. From January 2010 to March 2017, 14 patients with dumbbell tumors or paraspinal tumors of the thoracic spine who underwent resection with single-stage posterolateral approach were followed up and analyzed retrospectively. The operations were performed using a single-stage posterolateral approach with arc incision, unilateral laminectomy, and costotransversectomy without any instrumentation. Read More

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http://doi.wiley.com/10.1111/os.12405
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http://dx.doi.org/10.1111/os.12405DOI Listing
November 2018
23 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

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