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Zoher Naja, Ahmad Salah Naja, Omar Rajab, Anas Mugharbil, Abdul Rahman Shatila, Janah Al Hassan
Schwannoma is a common neoplasm in the peripheral and central nervous systems. Sciatic nerve schwanommas are rare. We report the case of a 50-year-old woman who was referred for treatment of persistent neuropathic pain in the left lower limb after resection of a schwannoma on the left S1 nerve root. The patient's history goes back when she was 27 years old and started to have electric-like pain in her lower left limb upon intercourse. Examination revealed a left ovarian cyst which was surgically removed. Her pain persisted despite taking nonsteroidal anti inflammatory drugs (NSAIDs)...
January 26, 2018: Scandinavian Journal of Pain
Francois Mathieu, Taylor J Abel, Lili-Naz Hazrati, James T Rutka
OBJECT: Intraosseous schwanomma of the calvarium METHODS: This paper reports the case of a 7-year-old boy who presented with an intraosseous schwanomma involving the occipital bone and provides a brief overview of the literature. RESULTS: The patient presented with a mass in the midline occipital region. Neuroimaging revealed a lytic lesion in the occipital bone with lack of enhancement on gadolinium MRI sequences. A gross total resection was performed, and histopathological analysis confirmed the diagnosis of schwannoma...
May 7, 2018: Child's Nervous System: ChNS: Official Journal of the International Society for Pediatric Neurosurgery
Nitin Manohar, Anandh Balasubramaniam, Maila Sharath Kumar, Keerthi Rao, Deepti Srinivas, Chakrabarti Dhritiman
No abstract text is available yet for this article.
March 2, 2018: Journal of Neurosurgical Anesthesiology
Rafael Martinez-Perez, Agustin Montivero, Natalia Rayo, Marco Ramirez, Cristian Naudy, Jorge Mura
BACKGROUND: Mild hearing loss following shunting has been described; however, severe auditory impairment associated with ventriculoperitoneal (VP) shunt is an uncommon, rarely reported phenomenon. Treatment options and pathophysiologic considerations are discussed in this case report. CASE DESCRIPTION: A 27-year-old man who was treated for an eighth cranial nerve schwannoma with complete resection and a VP shunt 10 years previously presented to the emergency department with acute severe hearing loss and headache...
May 2018: World Neurosurgery
Steffen Rosahl, Christopher Bohr, Michael Lell, Klaus Hamm, Heinrich Iro
Vestibular schwannomas expand slowly in the internal auditory canal, in the cerebellopontine angle, inside the cochlear and the labyrinth. Larger tumors can displace and compress the brainstem. With an annual incidence of 1:100 000 vestibular schwannoma represent 6-7% of all intracranial tumors. In the cerebellopontine angle they are by far the most neoplasm with 90% of all lesions located in this region. Magnetic resonance imaging (MRI), audiometry, and vestibular diagnostics are the mainstays of the clinical workup for patients harboring tumors...
April 2017: Laryngo- Rhino- Otologie
Zhixu Ng, Sheryl Ng, Vincent Nga, Kejia Teo, Sein Lwin, Chou Ning, Tseng T Yeo
Intradural spinal tumors are rare and can be classified into extramedullary or intramedullary. They commonly present with symptoms such as intractable back pain or neurologic deficits. We retrospectively reviewed 91 cases of intradural spinal tumors that underwent surgery in our institution from 2011 to 2016 and assessed their clinical outcomes. The majority of intradural tumors were extramedullary (89%), and the most common pathology was schwannoma (38.5%) followed by meningioma (29.7%). Comparing extramedullary versus intramedullary tumors, both groups experienced similar improvement in neurologic status post surgery (92...
January 2018: World Neurosurgery
Orestis Lyros, Stephan Schickel, Katrin Schierle, Albrecht Hoffmeister, Ines Gockel
Schwannomas are benign tumors derived from Schwann cells and their typical site of origin is the subcutaneous tissue of the extremities. Gastrointestinal localization of Schwannomas is extremely rare and the stomach is the prevalent site. Gastric schwannomas primarily occur in the gastric submucosa and are usually asymptomatic.We present a rare case of a solitary gastric schwannoma in a 51-year old male, which initially manifested with hematemesis by acute upper gastrointestinal (GI) bleeding. The upper GI-Endoscopy revealed a gastric submucosal tumor, 7 cm in size, located in the proximal corpus and fundus...
August 2017: Zeitschrift Für Gastroenterologie
Guru Trikudanathan, Sophia Smith, J Shawn Mallery
No abstract text is available yet for this article.
March 2018: Clinical Gastroenterology and Hepatology
Rachna Agarwal, Vikas Kanaujia, Priyadarshini Mishra, R V Phadke, Kumudini Sharma
We report a case of partial third nerve palsy resulting from a cystic lesion located at the orbital apex. Imaging was suggestive of cystic schwanomma but histopathology of the lesion confirmed epidermoid cyst, which is a rare tumour of the orbit.
February 2017: Orbit
Myreille D'Astous, Allen L Ho, Arjun Pendharkar, Clara Y H Choi, Scott G Soltys, Iris C Gibbs, Armine T Tayag, Patricia A Thompson, John R Adler, Steven D Chang
Non-vestibular cranial nerve schwannomas (NVCNS) are rare lesions, representing <10 % of cranial nerve schwannomas. The optimal treatment for NVCNS is often derived from vestibular schwannomas experience. Surgical resection has been referred to as the first line treatment for those benign tumors, but significant complication rates are reported. Stereotactic radiosurgery (SRS) has arisen as a mainstay of treatment for many benign tumors, including schwanommas. We retrospectively reviewed the outcomes of NVCNS treated by SRS to characterize tumor control, symptom relief, toxicity, and the role of hypo-fractionation of SRS dose...
January 2017: Journal of Neuro-oncology
I Barhmi, R Mahdoufi, A Khallouq, M Tatari, R Abada, M Roubal, M Mahtar
INTRODUCTION: Schwannomas are well-differentiated solitary benign tumors that originate from the schwann cells of the nerve sheath, constitute 1-8% of all head and neck tumors and 1-4% of the orbital tumors. SUMMARY OF THE CLINICAL CASE: A 57-year-old female patient visited our department, because she has a blindness of the right eye associated with an irreducible exophthalmia classified grade III, 4 years ago. Radiological exploration showed a mass in the orbital cone in relation to a probable optic nerve schwannoma confirmed by biopsy...
2016: International Journal of Surgery Case Reports
Shao-Yan Xu, Ke Sun, Hai-Yang Xie, Lin Zhou, Shu-Sen Zheng, Wei-Lin Wang
BACKGROUND: Schwannomas are mesenchymal tumors arising from the neural sheaths of peripheral nerves. They can almost develop in any part of the body, while head, neck and extremities are the most common sites. Occurrence in the retroperitoneum is rare. Schwannomas can show secondary degenerative changes including cyst formation, hyalinization, hemorrhage, and calcification, whereas the ossified retroperitoneal schwannoma was only reported in a malignant one. CASE SUMMARY: We first present a benign ossified retroperitoneal schwannoma in a 61-year-old female...
July 2016: Medicine (Baltimore)
Fredrik Tjernström, Per-Anders Fransson, Babar Kahlon, Mikael Karlberg, Sven Lindberg, Peter Siesjö, Måns Magnusson
OBJECTIVE: To evaluate auditory and vestibular function after presurgical treatment with gentamicin in schwannoma patients. BACKGROUND: The vestibular PREHAB protocol aims at diminishing the remaining vestibular function before vestibular schwannoma surgery, to ensure less acute symptoms from surgery, and initiate a more efficient vestibular rehabilitation already before surgery. However, the potential cochleotoxicity of gentamicin is a concern, since modern schwannoma surgery strives to preserve hearing...
November 2016: Ear and Hearing
Nauman F Manzoor, Abhishek Ray, Justin Singer, Ryan Nord, Jeffrey Sunshine, Cliff A Megerian, Nicholas C Bambakidis, Maroun T Semaan
Cerebral venous sinus thrombosis (CVST) is a rare complication of surgical treatment of vestibular schwanomma. We present a rare case of extensive venous sinus thrombosis after trans-labyrinthine approach that was refractory to systemic anti-coagulation. Mechanical aspiration thrombectomy was utilized to re-canalize the venous sinuses and resulted in successful resolution of neurological symptoms. Indications of utilizing endovascular approaches are discussed that will enable skull base surgeons to address this uncommon yet potentially fatal complication...
July 2016: American Journal of Otolaryngology
Anjali Singla, Tulika Gupta, Daisy Sahni, Anjali Aggarwal, Ashok Gupta
PURPOSE: The purpose of this investigation was to compare the rate of high jugular bulb (HJB) in relation to internal acoustic meatus (IAM), round window (RW) and endolymphatic sac and to study their clinical implications. METHODS: Eighty-seven cadaveric non-pathologic human temporal bones were micro-dissected to expose the jugular fossa (JF) and RW. The minimum distance of JF from RW was measured. On the inner surface of petrous part of temporal bone, minimum vertical distance of JF from IAM and saccus endolymphaticus (E sac) was also measured...
October 2016: Surgical and Radiologic Anatomy: SRA
A Affee Asma, E Kannah
Schwanommas arising from cervical sympathetic chain are tumours that are rare in occurrence. These lesions are usually difficult to differentiate from a vagal schwanomma and a carotid body tumour during the initial workup. In this report, a rarely seen huge cervical sympathetic chain schwanomma case with partial Horner's syndrome is being presented in detail, which to our known knowledge, is one of the few cases reported in literature.
October 2015: Journal of Clinical and Diagnostic Research: JCDR
Rajnish Kumar Arora, Raj Kumar
INTRODUCTION AND METHODS: We retrospectively analyzed 111 patients with spinal tumors operated over a period of 9 years to observe the relative frequency of different lesions, their clinical profile, functional outcome and prognostic factors. 30/111 (27%) were extradural, 40/111 (36.1%) were intradural extramedullary (IDEM) and 41/111 (36.9%) were intramedullary spinal cord tumors (IMSCTs). Mean age at surgery was 30.81 years (range 1-73 years). The average preoperative duration of symptoms was 16...
October 2015: Asian Journal of Neurosurgery
Praveen S Padasali, V S Shankaregowda, Shriram D Kshirsagar
We report a case of a median nerve schwannoma, a rare type of a benign tumor of Schwann cells that presents as a palpable and painful mass on the flexor aspect of the forearm. Schwannomas of the median nerve make up 0.1-0.3% of all hand tumors. Symptoms are caused by an entrapment syndrome resulting from the growing tumor. Pain is the most common complaint of schwannomas. Imaging studies include computed tomography and magnetic resonance imaging and ultrasound. It is difficult to differentiate schwanommas from neurofibromas solely on the basis of a radiological investigation...
July 2015: Asian Journal of Neurosurgery
J Hendry, A Chin, I R C Swan, M A Akeroyd, G G Browning
BACKGROUND: The Glasgow Benefit Inventory (GBI) is a validated, generic patient-recorded outcome measure widely used in otolaryngology to report change in quality of life post-intervention. OBJECTIVES OF REVIEW: To date, no systematic review has made (i) a quality assessment of reporting of Glasgow Benefit Inventory outcomes; (ii) a comparison between Glasgow Benefit Inventory outcomes for different interventions and objectives; (iii) an evaluation of subscales in describing the area of benefit; (iv) commented on its value in clinical practice and research...
June 2016: Clinical Otolaryngology
So Miyahara, Akinori Iwasaki
Most cases of hemothorax are related to blunt trauma, procedures, neoplasm such as schwanommas of von-Recklinghausen disease and soft-tissue tumors, and vascular ruptures. Spontaneous pneumothorax is also a caused of spontaneous hemothorax. Hemothorax may result in respiratory distress, respiratory failure, retained clot, fibrothorax, empyema and extended hospitalization. We should attempt to clear the chest cavity as early in the hospital course as the patient's physiology will allow. The management of hemothorax has been a complex problem since it was 1st described over 200 years ago...
July 2015: Kyobu Geka. the Japanese Journal of Thoracic Surgery
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