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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...
October 17, 2016: 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...
July 19, 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
Surya Kant Tripathi, Ashwini Kumar Mishra, Ajay Kumar Verma, Ved Prakash
A 21-year-old non-smoker, non-hypertensive male without diabetes was referred to our pulmonary medicine department with suspected malignant intrathoracic mass. The clinicoradiological evaluation revealed that it could be a posterior mediastinal mass. The same diagnosis was confirmed on performing CT and MRI. Benign posterior mediastinal schwanomma was suspected as it is the most common posterior mediastinal mass. It was completely resected. Histopathological examination confirmed the same. The mass was also sent for culture for mycobacterium which came out to be positive...
2014: BMJ Case Reports
Pranav Dorwal, Ishani Mohapatra, Dheeraj Gautam, Aditya Gupta
Melanocytomas are present in leptomeninges and arise from neural crest during early embryonic development. They are a rare entity and usually occur in the thoracic spine and infratentorial region. We report a 32-year-old female with meningeal melanocytoma of D9-10. Magnetic resonance imaging revealed an intramedullary spinal tumor at D9-D10. Intraoperatively, the tumor was greyish-black in color with moderate vascularity, and was adherent to the cord. The clinical differential diagnoses included cavernoma and melanocytoma...
January 2014: Asian Journal of Neurosurgery
Sangeeta P Wanjari, Panjab V Wanjari, Rajkumar N Parwani, Satyajitraje A Tekade
Ancient schwannoma is considered as a variant of schwannoma, comprising about 10% of all schwanommas. Schwannoma is a benign neoplasm derived from the nerve sheath of peripheral motor, sensory and sympathetic nerves and from the cranial nerve pairs. It usually presents as a solitary soft-tissue lesion which is slow growing, encapsulated and is often associated with nerve attached peripherally. Diagnosis is often confirmed with the microscopic examination. The long standing schwannoma attributes to degenerative changes and is termed "ancient" schwannoma...
November 2013: Indian Journal of Dental Research: Official Publication of Indian Society for Dental Research
Marc S Schwartz, Elina Kari, Brian M Strickland, Karen Berliner, Derald E Brackmann, John W House, Rick A Friedman
OBJECTIVE: To determine whether partial tumor removal in large vestibular schwannoma improves facial nerve outcomes while maintaining a low risk of tumor regrowth/recurrence. STUDY DESIGN: Retrospective chart review and prospective database. SETTING: Tertiary neurotologic referral center. PATIENTS: Four hundred patients with a vestibular schwannoma of 2.5 cm or greater in maximum diameter undergoing translabyrinthine microsurgical resection from 2001 to 2011...
October 2013: Otology & Neurotology
Søren Venø, Stevo Duvnjak, Jens Eckardt
We report a rare case of a primary schwanomma in trachea causing airway symptoms in a 78-year-old male. Benign tracheal tumours are often misdiagnosed as asthma or chronic lung disease and should be considered in patients who present with symptoms as upper airway obstruction and haemoptysis. In this case story the patient was treated with endoscopic resection of the tumour.
May 20, 2013: Ugeskrift for Laeger
Julien Hubert, Geneviève Landes, Michèle Tardif
A schwannoma is a benign tumour of Schwann cells that presents as a palpable and painless mass on the volar aspect of the hand and wrist. A 44-year-old, right-handed woman, presented for a volar swelling of her right hand. On examination she had a non-pulsatile mass with no fluctuation at the radiopalmar aspect of the right hand, and a soft mass on the volar aspect of the right palm. There was no pain on palpation. An excisional biopsy specimen showed an encapsulated and extrafascicular tumour that originated in the median nerve fascicules...
February 2013: Journal of Plastic Surgery and Hand Surgery
A Ravikumar, P Singh, V K Batish
Schwanomma of the vestibular nerves usually present with sensorineural hearing loss of varying degrees. We report here a large (5.5cm x 3.5cm) vestibular schwanomma with normal hearing. Other unusual features of this case were the young age (20 yrs) of the patient and absence of any otological symptoms.
April 1999: Indian Journal of Otolaryngology and Head and Neck Surgery
Rohan Ramakrishna, Robert Rostomily, Jason Rockhill
We report a rare case of a patient with a vestibular schwanomma who underwent gamma knife irradiation and subsequently lost unilateral taste sensation. As a result, the patient ceased smoking.
April 2013: British Journal of Neurosurgery
Jeffrey M Blumberg, Jaroslaw Jedrych, Jose Costa, Benjamin Judson
Liposarcomas are the most common soft-tissue sarcoma of adults, but rare in the head and neck. Recently, a subtype of dedifferentiated liposarcoma with meningiothelial-like whorls was reported and we present the first description of such a tumor in the head and neck. A 65 year old male underwent a resection of a calcified retroesophageal mass that was in close relation to the left hemithyroid and recurrent laryngeal nerve. It was resected en bloc with the left thyroid lobe. Initial pathologic evaluation suggested the mass was a schwanomma of the recurrent laryngeal nerve, but positive staining for MDM2 and CDK4 indicated the tumor was a dedifferentiated liposarcoma...
December 2012: Head and Neck Pathology
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