scholarly journals Rare extracranial localizations of the head and neck schwannomas

2010 ◽  
Vol 67 (7) ◽  
pp. 596-599
Author(s):  
Milan Jovanovic ◽  
Ljiljana Cvorovic ◽  
Rastislav Poljovka ◽  
Aleksandar Oroz ◽  
Ljubomir Pavicevic

Introduction. Schwannomas are tumors of neurogenic origin, that arise from Schwann cells which surround peripheral, cranial and autonomic nerves. Schwannomas account for only 5% of all benign soft tissue tumors, and 25-45% of extracranial schwannomas are present in the head and neck region. They are usually classified according to the nerve of origin and the site within the head and neck. Case report. We presented extremely rare extracranial localizations of schwannomas and discussed about diagnosis and management of these tumors. Conclusion. Schwannomas are slow-growing tumors and late symptoms appearance may cause a delay in diagnosis and treatment of patients with these tumors. An appropriate diagnostic protocol is indispensable tool in performing a differential diagnosis of malignant from benign lesions. Choice of surgical approach depends on schwannomas localization.

Author(s):  
Chandra Veer Singh ◽  
Sheetal Radia ◽  
Saalim Sheikh ◽  
Vijay Haribhakti

<p class="abstract">Schwannoma are slow growing tumours, which can arise from any peripheral nerve. 10% of schwannomas that occur in the head and neck region mostly originate from the vagus or sympathetic nervous system. Extracranial schwannomas in the head and neck region are rare neoplasm. Intraoral schwannoma are only 1% of the all head and neck tumours. Diagnosis is established by imaging studies such as magnetic resonance imaging or computed tomography, while FNAC is used to rule out other conditions. We report a rare case of lingual schwannomas generally present as a painless lump schwannoma of the tongue in a 27-year-old male complaining of asymptomatic swelling over a posterolateral surface of the tongue, treated by complete surgical excision. The diagnosis was established on the basis of clinical, histopathological, and immunohistochemical examination. We report a rare case of schwannoma over the posterolateral surface of tongue. Prognosis is good for the patient when this condition is correctly diagnosed as the condition rarely recurs after complete resection.</p>


2020 ◽  
Vol 17 (1) ◽  
pp. 63-65
Author(s):  
Anisha Joshi ◽  
Deeptara Pathak Thapa

Schwannomas/ neurilemmomas are benign tumors of nerve sheath arising from Schwann cells that form myelin sheath around peripheral nerves. They are usually solitary, slow growing and encapsulated lesions. Head and neck are the common sites. We report a case of a 38 years old Nepalese female who had presented with a solitary asymptomatic, slow growing nodule on the left side of the chin for the last three years. Dermoscopy of the lesion revealed arborizing vessels with brownish pigmentation overlying a whitish to pinkish background. Complete excision of the lesion was performed. Histopathological evaluation of the lesion revealed schwannoma. Though schwannomas are a rare diagnosis, they should be considered as a differential diagnosis of any unilateral, asymptomatic, slow growing nodule in the head and neck region. Dermoscopy is a useful tool which helps to differentiate schwannoma from other lesions. Histopathology is the gold standard for diagnosis and the treatment of choice is surgical excision.  


2005 ◽  
Vol 119 (7) ◽  
pp. 570-572 ◽  
Author(s):  
H T Anil ◽  
B V Chandre Gowda ◽  
S Lakshmi ◽  
S R Niveditha

Schwannoma is a solitary, benign tumour arising from the neural sheath Schwann cells of the peripheral, cranial or autonomic nerves. In the head and neck region, it occurs most commonly in association with the acoustic nerve within the skull and is rarely found in oral structures. When it is found in oral structures, the tongue is reported to be the favoured site. Schwannoma of the tonsil is extremely rare, with only two cases reported in the literature. We report what is, to our knowledge, the third case of schwannoma of the tonsil, diagnosed by histopathology.


2020 ◽  
Vol 13 (1) ◽  
pp. 78-82
Author(s):  
Brihaspati Sigdel ◽  
Rajesh Maharjhan ◽  
Tulika Dubey ◽  
Bhima Neupane

Hemangiomas of the head and neck region comprise about 60 to 70% of all benign tumors. Intramuscular hemangioma is a rare, slow-growing, angiomatous tumor. We report a rare case of an Intramuscular Hemangioma of Right sternocleidomastoid muscle in a six years old girl presenting for four years and with extensive involvement necessitating excision. Microscopic excision reduces the risk of recurrence.


2018 ◽  
Vol 17 (4) ◽  
pp. 680-682
Author(s):  
Khim Soon Vong ◽  
Irfan Mohamad ◽  
Rohaizam Jaafar

Extracranial schwannomas in the head and neck region are relatively rare neoplasms. The tumours are slow growing and often unnoticeable. The nerve of origin is unable to be determined until the time of surgery. Proper preoperative assessment of the disease can be done by imaging studies such as magnetic resonance imaging. The treatment for these tumours is surgical resection with preservation of the neural pathway. We report a case of left intraparotid facial nerve schwannoma in a middle-aged lady causing complete facial nerve paralysis. The clinical features, diagnostic possibilities and management are discussedBangladesh Journal of Medical Science Vol.17(4) 2018 p.680-682


2020 ◽  
Vol 18 (1) ◽  
pp. 102-104
Author(s):  
A Bhattarai ◽  
BL Shrestha ◽  
A Dhakal

Rhabdomyosarcoma comprises about half of the soft tissue tumors. Approximately 40% of the alveolar subtype occur in the head and neck region. Patients present with unilateral nasal mass with/without lymphadenopathy and with/without orbital manifestations. Diagnosis is aided radiologically by CT scan, MRI along with biopsy and is confirmed by immunohistochemistry. Treatment involves surgical resection, chemotherapy, radiotherapy or a combination of these. In spite of treatments, however, the outcome is poor. This is a case report of 14-year-old male who presented with unilateral nasal mass with proptosis of right eye who was eventually diagnosed as a case of alveolar rhabdomyosarcoma of solid variant.


2021 ◽  
Vol 10 (22) ◽  
pp. 1735-1738
Author(s):  
Geetha Rajendran ◽  
Karthik Ragupathy ◽  
Sanjay Pasupathy ◽  
Ganesh Ramakrishnan ◽  
Kiruthika Shriranjani

Schwannomas are relatively rare benign neoplasms of neurogenic origin from the neural sheath of peripheral nerves occurring more commonly in the head and neck. Mandibular bone is the commonest site of occurrence of these nerve lesions. Radiographically, intraosseous schwannoma of mandible is very difficult to differentiate from other bony pathologies such as neurofibroma, ameloblastoma, fibrous dysplasia, myxoma, central giant cell lesion, or periapical lesion, so it should be included in the differential diagnosis of lower jaw swelling. Schwannoma as a pathologic entity was first reported in 1910 by Verocay. Schwannoma (also known as neurinoma, neurolemmoma, neurilemmoma, perineural fibroblastoma, and peripheral nerve sheath tumour) is a rare, slowgrowing, benign neurogenic neoplasm that originated from Schwann cells. Schwann cells cover myelinated sheath of nerve fibres.1 These intraosseous schwannomas account for not more than 1 % of the central neoplasms. More than one third of all schwannomas are found in the head and neck region. 2 Most of these originate from the lower cranial nerve and sympathetic nervous system. Schwannomas from the upper cranial nerves such as trigeminal nerve and its branches are less common. Other commonly reported sites include the vertebra, clavicle, ribs, sacrum, humerus, ulna radius, etc. This painless slow-growing neoplasm may develop at any age.


2004 ◽  
Vol 118 (2) ◽  
pp. 156-158 ◽  
Author(s):  
Robert Almeyda ◽  
Prasad Kothari ◽  
Ha Chau ◽  
Vincent Cumberworth

Neurilemmomas are slow growing, benign neoplasms of neural crest Schwann cell origin. They arise from any peripheral, spinal or cranial nerve except the olfactory and optic. Presentation is usually asymptomatic but focal neurological signs and symptoms may be associated with nerve compression. With approximately one third of all documented cases presenting in the head and neck region, we report a case of a submandibular neurilemmoma misdiagnosed pre-operatively. The diagnostic difficulties are discussed and the current literature reviewed. Thiscase highlights the importance of inclusion of nerve sheath tumours in differential diagnoses of soft tissue lesions in the head and neck.


2014 ◽  
Vol 2014 ◽  
pp. 1-2
Author(s):  
Mahendra Singh ◽  
Ashish Saxena ◽  
Lovekesh Kumar ◽  
Snehal K. Karande ◽  
Yuvraj Kolhe

Lipomas are the slow growing soft tissue tumors of benign nature. They commonly grow on torso and extremities but may also develop in head and neck region. Rarely lipomas can grow to acquire gigantic proportions, turning into an entity termed as giant lipoma. Such lipomas are entitled to immediate attention as they have a relatively high malignant potential. We report a rare case of giant cervical lipoma in an elderly gentleman, followed by a brief discussion on diagnosis and management of the disorder.


2021 ◽  
Vol 3 (4) ◽  
pp. 01-05
Author(s):  
Nasir A. Magboul ◽  
Mubarak AlQahtani ◽  
Abdulwahid S. ALQahtani ◽  
Taqwa Abdullah M Osman

Synovial sarcoma arises primarily in the lower extremities with a predilection for sites in proximity to large joints, such as the knee. It rarely occurs in the head and neck region, and the tonsil is an unusual site for the tumor, with only eight previously published cases in this anatomical site. 6–10 % of all soft tissue tumors, only 3–5 % arise in the head and neck region, and SS arising in the tonsil is a rare finding, with only eight well-documented cases reported in the English language literature. We describe the histopathological findings of a primary synovial sarcoma of the palatine tonsil arising in a 20-year-old male, with presentation of dysphagia and sleep disturbance.


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