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hypoglossal schwannoma

Takuro Inoue, Yoichi Nonaka, Hisao Hirai, Ayako Shima, Fumio Suzuki, Masayuki Matsuda, Takanori Fukushima
Extensive large dumbbell-shaped hypoglossal schwannoma is extremely rare, and total resection is nearly impossible. We present a case of a 61-year-old male with a giant-size hypoglossal schwannoma with moderate tongue atrophy. The tumor extended from the enlarged hypoglossal canal to the brainstem intradurally and the high cervical region extradurally. Through the extreme lateral infrajugular transcondylar (ELITE) skull base approach, the tumor was totally removed in a single-stage operation. Single-stage total resection is feasible by an experienced skull base team utilizing transcondylar skull base techniques and high cervical dissection...
December 28, 2017: Acta Neurochirurgica
Soliman Oushy, Christopher S Graffeo, Avital Perry, Jonathan M Morris, Matthew L Carlson, Jamie J Van Gompel
BACKGROUND: Collet-Sicard syndrome is a rare manifestation of skull base disease involving the jugular and hypoglossal foramina. We report the first case of Collet-Sicard attributable to extramedullary plasmacytoma-multiple myeloma (EP-MM), as well as the second case of EP-MM precipitating a jugular foramen syndrome (JFS)-spectrum disorder. CASE DESCRIPTION: A fifty-nine-year-old woman presented with 4-months of left aural fullness and pulsatile tenderness, positional vertigo, hoarseness, and dysphagia...
November 27, 2017: World Neurosurgery
Aaron Plitt, Tarek Y El Ahmadieh, Shivani Bindal, Larry Myers, Jonathan White, Wayne Gluf
BACKGROUND: Schwannomas are benign, slow growing neoplasms of the myelin-producing Schwann cells of peripheral nervous system that most commonly affect sensory nerves. Hypoglossal schwannomas, a tumor of a purely motor nerve, comprise less than 5% of all head and neck schwannomas. Since the first description of a hypoglossal schwannoma in 1933, there have been very few case reports of extracranial origins. The most common location of an extracranial hypoglossal schwannoma is in the parapharyngeal space, and can mimic paragangliomas...
November 22, 2017: World Neurosurgery
Sampath Chandra Prasad, Melissa Laus, Manjunath Dandinarasaiah, Enrico Piccirillo, Alessandra Russo, Abdelkader Taibah, Mario Sanna
BACKGROUND: Intrinsic tumors of the facial nerve are a rare entity. Dealing with this subset of tumors is challenging both in terms of decision making and surgical intervention. OBJECTIVE: To review the outcomes of surgical management of facial nerve tumors and cable nerve graft interpositioning. METHODS: A retrospective analysis was performed at a referral center for skull base pathology. One hundred fifteen patients who were surgically treated for facial nerve tumors were included...
September 29, 2017: Neurosurgery
Mohamed Aboshanif, Eigo Omi, Shinsuke Suzuki, Teruyuki Sato, Koh Koizumi, Kazuo Ishikawa, Masataka Takahashi
Facial nerve schwannoma is a very rare benign tumor representing less than 1% of intrapetrous lesions. Our patient is a forty-one year old female who has suffered from recurrent right facial palsy for the last six years. She was first misdiagnosed as having Bell's palsy and received corticosteroids which resulted in little improvement. She then had facial nerve decompression surgery which resulted in a partial improvement. Since then, she has suffered from recurrent attacks of facial palsy. Two years ago, she came to our hospital seeking further treatment options...
October 5, 2017: Auris, Nasus, Larynx
Steven M Weindling, Christopher P Wood, Joseph M Hoxworth
OBJECTIVE: The objective of this study is to compare the prevalence of hypoglossal canal lesions and identify differentiating imaging features. MATERIALS AND METHODS: A 15-year retrospective review of lesions of the hypoglossal nerve and hypoglossal canal, excluding those in patients with metastasis or prior head and neck cancer and those treated with radiation or surgery, was performed. Clinical findings and lesion imaging features were documented. The contrast-enhanced T1-weighted nonenhancing cystic component of hypoglossal schwannomas was compared with size-matched pathologically proven vestibular schwannomas...
November 2017: AJR. American Journal of Roentgenology
Rosario Fornaro, Alexander Salerno, David Constantin Filip, Elisa Caratto, Michela Caratto, Marco Casaccia
Schwannomas are benign tumours that originate from the myelin sheath of peripheral nerves. They are characterised by a slow growth tendency. Benign schwannomas represent 35% of the head and neck district tumours. Hypoglossal schwannomas account for 5% of non-vestibular schwannomas, and malignant schwannomas occur very rarely. In the present case report, the case of a 49-year-old man who presented with paraesthesias in the left parotid and submandibular region, associated with sensation of foreign bodies and dysphagia for solids, is described...
August 2017: Molecular and Clinical Oncology
Mohammad Mussadaq Khan, Mohammad Iqbal Khan, Hussan Ali, Tehreem Kazmi, Hania Iqbal
BACKGROUND: Neuroendocrine tumors of the neck are rare swellings, which constitute about 0.03% of all tumors. Most are sporadically arising paragangliomas. Over 50% arise from the carotid bodies and pose difficulties in diagnosis and surgical management, which may result in disabling complications. OBJECTIVE: To determine the diagnostic, surgical, and postoperative challenges, and how to overcome them, in the management of neuroendocrine tumors of the neck. STUDY DESIGN: Descriptive case series...
July 6, 2017: Annals of Vascular Surgery
Amandeep Kumar, Manmohan Singh, Mehar C Sharma, Poodipedi S Chandra, Bhawani S Sharma, Ashok K Mahapatra
BACKGROUND: Intracranial schwannomas most commonly arise from the vestibulocochlear nerve and less frequently from trigeminal, facial, and hypoglossal nerves. Intracranial schwannomas unrelated to cranial nerves are very rare; only approximately 50 cases have been reported in the literature. Tentorial schwannoma (TS) is even rarer, with only 13 cases reported to date. We present a rare case of giant TS. CASE DESCRIPTION: A 21-year-old man presented with generalized headache and dizziness for the past 6 months and worsening of symptoms for the past 2 months...
September 2017: World Neurosurgery
Giulio Illuminati, Giulia Pizzardi, Rocco Pasqua, Piergaspare Palumbo, Francesco Vietri
INTRODUCTION: Schwannomas of the descending loop of the hypoglossal nerve are very rare. They are slow-growing tumors that may masquerade a carotid body tumor. PRESENTATION OF CASE: A 60-year-old female was referred for a latero-cervical mass appearing as a chemodectoma at CT-scan. At operation, a 2cm mass arising from the descending loop of the hypoglossal nerve was resected en bloc with the loop itself and a functional lymphadenectomy was associated. Post-operative course was uneventful and the patient is free from disease recurrence at one year follow-up...
2017: International Journal of Surgery Case Reports
Kulamani Sahoo, Pramod Ramchand Shaha, Rahul Khetawat, Mohd Abbas Ilyas, Gaurav Rajendra Khairnar
Schwannomas (neurinoma, neurilemmoma) are benign slow-growing encapsulated tumours originating from well-differentiated myelin-producing Schwann cells or nerve fiber sheet cells at the glial-Schwann cell junction. Hypoglossal nerve schwannoma mostly develops in the intracranial and extra-cranial segment or in both intracranial and extra-cranial segment forming a dumbbell shape tumour. The peripheral hypoglossal schwannomas are very rare. We present a case of right hypoglossal nerve schwannoma in a 46-year-old female who presented with headache and neck pain since 2 weeks with deviation of tongue to right side since 1 week...
December 2016: Journal of Clinical and Diagnostic Research: JCDR
F Pilolli, L Giordano, A Galli, M Bussi
The purpose of the present study was to evaluate the advantages of a video-assisted, minimally invasive transcervical approach to benign and malignant parapharyngeal space (PPS) tumours. Ten patients affected by benign and malignant PPS neoplasms underwent a combined transcervical and video-assisted minimally invasive approach, using Hopkins telescopes. We describe the operative technique and perform a review of the literature. Definitive histology revealed 3 pleomorphic adenomas, 2 schwannomas, 2 metastatic papillary thyroid carcinomas, one carcinoma ex pleomorphic adenoma, one cavernous haemangioma and one basal cell adenoma...
August 2016: Acta Otorhinolaryngologica Italica
Ji Hyuk Han, Mischelle J Suh, Jin Won Kim, Hyun Sang Cho, In Seok Moon
CONCLUSION: In this series, the split type hypoglossal-facial nerve anastomosis resulted in more favorable outcomes in terms of both facial function and tongue atrophy. OBJECTIVE: This study compared surgical techniques for hypoglossal-facial nerve anastomosis after schwannoma removal and evaluated which technique achieves better facial outcomes and less tongue morbidity. METHOD: This study included 14 patients who underwent hypoglossal-facial nerve anastomosis after schwannoma removal and were followed for more than 1 year...
January 2017: Acta Oto-laryngologica
Yong Li, Jinrong Lou, Shujun Qiu, Yutian Guo, Mianshun Pan
Cases of hypoglossal schwannoma are extremely rare. Historically, microsurgical resection has been the standard treatment, but it may not always be feasible; thus, it is crucial to investigate alternative treatments. We herein present the cases of two patients, both of whom presented with tongue deviation and hemiatrophy, accompanied by headaches. Magnetic resonance imaging revealed a dumbbell-shaped tumor originating from the hypoglossal nerve that was adjacent to the cranial base in each patient. Hypofractionated stereotactic radiotherapy was used to treat the tumors, with a total dose of 30 Gy in 3-Gy fractions delivered to the planning target volume...
August 2016: Molecular and Clinical Oncology
Zhiyun Yu, Gang Zhao, Zhongying Zhao, Yunqian Li, Guifang Xie
Dumbbell-shaped hypoglossal Schwannomas of the 12th cranial nerve are extremely rare, and complete removal of these tumors is difficult, particularly in elderly patients with recurrent tumors. The present study reports the case of a 61-year-old male with a giant recurrent dumbbell-shaped hypoglossal schwannoma that arose extracranially. The recurrent tumor was completely removed in a one-stage surgical procedure via the far lateral suboccipital approach in combination with the transcervical approach. To the best of our knowledge, such a lesion has not been reported previously...
January 2016: Oncology Letters
Toshinori Hasegawa, Takenori Kato, Yoshihisa Kida, Ayaka Sasaki, Yoshiyasu Iwai, Takeshi Kondoh, Takahiko Tsugawa, Manabu Sato, Mitsuya Sato, Osamu Nagano, Kotaro Nakaya, Kiyoshi Nakazaki, Tadashige Kano, Koichi Hasui, Yasushi Nagatomo, Soichiro Yasuda, Akihito Moriki, Toru Serizawa, Seiki Osano, Akira Inoue
OBJECTIVE This study aimed to explore the efficacy and safety of stereotactic radiosurgery in patients with jugular foramen schwannomas (JFSs). METHODS This study was a multiinstitutional retrospective analysis of 117 patients with JFSs who were treated with Gamma Knife surgery (GKS) at 18 medical centers of the Japan Leksell Gamma Knife Society. The median age of the patients was 53 years. Fifty-six patients underwent GKS as their initial treatment, while 61 patients had previously undergone resection. At the time of GKS, 46 patients (39%) had hoarseness, 45 (38%) had hearing disturbances, and 43 (36%) had swallowing disturbances...
January 22, 2016: Journal of Neurosurgery
Monirah Albathi, Sam Oyer, Lisa E Ishii, Patrick Byrne, Masaru Ishii, Kofi O Boahene
IMPORTANCE: Preserving facial nerve function is a primary goal and a key decision factor in the comprehensive management of vestibular schwannoma and other cerebellopontine angle (CPA) tumors. OBJECTIVE: To evaluate the use of the pattern of facial paralysis recovery in the early postoperative months as a sole predictor in selecting patients for facial nerve grafting after CPA tumor resection when cranial nerve VII is uninterrupted. DESIGN, SETTING, AND PARTICIPANTS: Sixty-two patients with facial paralysis and uninterrupted cranial nerve VII who developed facial paralysis after CPA tumor resection at The Johns Hopkins Hospital were followed up prospectively to assess for spontaneous recovery and to determine candidacy for facial reanimation surgery...
January 2016: JAMA Facial Plastic Surgery
Pokhraj Prakashchandra Suthar, Kewal Arunkumar Mistry, Patel Rajan, Patel Ankit, Chetan Mehta
No abstract text is available yet for this article.
October 2015: Journal of Clinical and Diagnostic Research: JCDR
Saeko Hayashi, Satoshi Takahashi, Satoka Shidoh, Kazunari Yoshida
In hypoglossal schwannoma removal via the far-lateral approach needs care as the vertebral arteries are usually adjacent to the tumors. Thus, it is important to understand their location respective to schwannoma to conduct a safe surgery. We reviewed the data of eight patients with hypoglossal schwannoma who underwent surgery in Keio University Hospital in 2005-2013. There were five males and three females (mean age at initial presentation was 48.6 years, range 38-72 years). We especially focused on the spatial relationship between the vertebral artery and the tumor, and evaluated their spatial relationship from intraoperative findings...
2015: Neurologia Medico-chirurgica
Arzu Bilgin-Freiert, Kåre Fugleholm, Lars Poulsgaard
We report a case of an intraneural ganglion cyst of the hypoglossal canal. The patient presented with unilateral hypoglossal nerve palsy, and magnetic resonance imaging showed a small lesion in the hypoglossal canal with no contrast enhancement and high signal on T2-weighted imaging. The lesion was assumed to be a cystic schwannoma of the hypoglossal nerve. Stereotactic irradiation was considered, but in accordance with the patient's wishes, surgical exploration was performed. This revealed that, rather than a schwannoma, the patient had an intraneural ganglion cyst, retrospectively contraindicating irradiation as an option...
July 2015: Journal of Neurological Surgery Reports
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