Schwannoma of the palatine tonsil

2005 ◽  
Vol 119 (7) ◽  
pp. 570-572 ◽  
Author(s):  
H T Anil ◽  
B V Chandre Gowda ◽  
S Lakshmi ◽  
S R Niveditha
Keyword(s):  
Head And Neck ◽  
Schwann Cells ◽  
Neck Region ◽  
Benign Tumour ◽  
Palatine Tonsil ◽  
Autonomic Nerves ◽  
Head And Neck Region ◽  
The Third ◽  
Acoustic Nerve ◽  
Neural Sheath

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.

scholarly journals A Case of Schwannoma in Subfrontal Area and Nasal Cavity

2021 ◽  
Vol 28 (2) ◽  
pp. 125-129
Author(s):  
Nam Yoon Jung ◽  
Jae Won Heo ◽  
Song-Hee Han ◽  
Woo Yong Bae
Keyword(s):  
Nasal Cavity ◽  
Head And Neck ◽  
Schwann Cells ◽  
Paranasal Sinus ◽  
Unusual Case ◽  
Neck Region ◽  
Autonomic Nerves ◽  
Review Of The Literature ◽  
Left Nasal Cavity ◽  
Head And Neck Region

Schwannoma is a benign solitary neoplasm emerging from the Schwann cells of the peripheral, cranial and autonomic nerves. Approximately 25 to 45% of schwannomas occur in the head and neck region. However, schwannoma in the subfrontal area, nasal cavity or paranasal sinus is very rare and accounts for only 4% of these neoplasms. We experienced a case of schwannoma in the subfrontal area and left nasal cavity in a 74-year-old man who complained of recurrent rhinorrhea. We report this unusual case of schwannoma with a review of the literature.

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
Keyword(s):  
Head And Neck ◽  
Neck Region ◽  
Soft Tissue Tumors ◽  
Autonomic Nerves ◽  
Head And Neck Region ◽  
Delay In Diagnosis ◽  
Benign Soft Tissue Tumors ◽  
Indispensable Tool ◽  
Slow Growing ◽  
Nerve Of Origin

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.

Fibrous histiocytoma of the larynx

1989 ◽  
Vol 103 (2) ◽  
pp. 216-218 ◽  
Author(s):  
M. B. Jordan ◽  
J. V. Soames
Keyword(s):  
Head And Neck ◽  
Fibrous Histiocytoma ◽  
Malignant Neoplasm ◽  
Neck Region ◽  
Benign Tumour ◽  
Head And Neck Region ◽  
Potentially Malignant

AbstractFibrous histiocytoma is uncommon in the head and neck region and rare in the larynx. Its behaviour is unpredictable.A case is reported in a 54-year-old male which was treated conservatively initially and which recurred several times over a seven year period. During that time the appearances of the lesion changed from those of a densely collagenous, cytologically benign tumour to those of a richly cellular and potentially malignant neoplasm. Laryngectomy was eventually undertaken.

scholarly journals Schwannoma of the Tonsil

2007 ◽  
Vol 86 (6) ◽  
pp. 354-355 ◽  
Author(s):  
Byung-Joo Lee ◽  
Soo-Geun Wang ◽  
Jin-Choon Lee ◽  
Il-Woo Lee
Keyword(s):  
Head And Neck ◽  
Neck Region ◽  
Rare Entity ◽  
Head And Neck Region ◽  
Acoustic Nerve

Between 25 and 48% of schwannomas have been reported to occur in the head and neck region; the acoustic nerve is involved in most cases. Schwannomas arising in the tonsil are extremely uncommon. We report a case of tonsillar schwannoma in a 23-year-old woman. We also review the literature on this rare entity.

scholarly journals Frequency and Evolution of Acute Oral Complications in Patients Undergoing Radiochemotherapy Treatment for Head and Neck Squamous Cell Carcinoma

2019 ◽  
pp. 014556131987924 ◽  
Author(s):  
Michelle Palmieri ◽  
Dmitry J. S. Sarmento ◽  
André P. Falcão ◽  
Victor A. O. Martins ◽  
Thais B. Brandão ◽  
...  
Keyword(s):  
Squamous Cell Carcinoma ◽  
Cell Carcinoma ◽  
Head And Neck ◽  
Squamous Cell ◽  
Oral Mucositis ◽  
Neck Region ◽  
World Health ◽  
Head And Neck Region ◽  
The Third ◽  
Oral Complications

Despite its effectiveness, radiochemotherapy treatment in the head and neck region is accompanied by acute oral complications such as oral mucositis, dysphagia, xerostomia, and dysgeusia. The aim of this study was to analyze and prospectively assess the frequency and evolution of acute oral complications during radiochemotherapy in patients diagnosed with squamous cell carcinoma in the head and neck region. We have analyzed oral complications of 20 patients during 6 weeks of radiochemotherapy treatment for squamous cell carcinoma. Oral mucositis was evaluated according to the World Health Organization criteria, dysphagia, and dysgeusia according to the National Cancer Institute Common Toxicity Criteria, and xerostomia according to parameters set by the Seminars in Radiation Oncology. Mucositis was first observed in the second week and all patients presented some degree of mucositis in the fourth week of radiotherapy. Xerostomia and dysphagia were initially reported already in the first week of radiotherapy. All patients presented xerostomia in the fourth week; however, dysphagia was observed in all patients, only in the sixth week. Dysgeusia was first observed in the second week, becoming more severe in the third week. Acute oral complications can be observed throughout the treatment, but the third week of radiotherapy seems to represent a critical week, regardless of the grade of the complication. The sixth week presents the worst grades of these complications. Knowledge about the natural course of oral complications during radiotherapy is important to develop better strategies for treatment and improve the patients’ quality of life.

scholarly journals Mental Nerve Schwannoma - A Rare Cause of Lower Jaw Swelling

2021 ◽  
Vol 10 (22) ◽  
pp. 1735-1738
Author(s):  
Geetha Rajendran ◽  
Karthik Ragupathy ◽  
Sanjay Pasupathy ◽  
Ganesh Ramakrishnan ◽  
Kiruthika Shriranjani
Keyword(s):  
Head And Neck ◽  
Schwann Cells ◽  
Peripheral Nerves ◽  
Cranial Nerves ◽  
Neck Region ◽  
Periapical Lesion ◽  
Lower Cranial Nerve ◽  
Head And Neck Region ◽  
Lower Jaw ◽  
Slow Growing

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.

scholarly journals Schwannomas in the head and neck: retrospective analysis of 21 patients and review of the literature

2007 ◽  
Vol 125 (4) ◽  
pp. 220-222 ◽  
Author(s):  
Erwin Langner ◽  
André Del Negro ◽  
Hugo Kenzo Akashi ◽  
Priscila Pereira Costa Araújo ◽  
Alfio José Tincani ◽  
...  
Keyword(s):  
Head And Neck ◽  
Schwann Cells ◽  
Neck Region ◽  
Diagnostic Methods ◽  
Von Recklinghausen’S Disease ◽  
Von Recklinghausen's Disease ◽  
Head And Neck Region ◽  
Tumor Enucleation ◽  
Recklinghausen's Disease ◽  
Recklinghausen’S Disease

CONTEXT AND OBJECTIVE: Schwannomas are benign neoplasms of the peripheral nerves originating in the Schwann cells. According to their cellularity, they can be subdivided into Antoni A or Antoni B types. They are rare and usually solitary, with clearly delimited capsules. They occur in the head and neck region in only 25% of the cases, and may be associated with Von Recklinghausen's disease. The present study retrospectively analyzed some data on this disease in the head and neck region and reviewed the literature on the subject. DESIGN AND SETTING: Retrospective study at Head and Neck Service, Universidade Estadual de Campinas. METHODS: Data on 21 patients between 1980 and 2003 were reviewed. The sites of cervical schwannomas and the intraoperative, histopathological and postoperative clinical status of these cases were studied. Diagnostic methods, type of surgery and association with neurofibromatosis were evaluated. RESULTS: The patients' ages ranged from 16 to 72 years. Four patients had a positive past history of type I neurofibromatosis or Von Recklinghausen's disease. The nerves affected included the brachial and cervical plexuses, vagus nerve, sympathetic chain and lingual or recurrent laryngeal nerve. The nerve of origin was not identified in six cases. Tumor enucleation was performed in 16 patients; the other five required more extensive surgery. CONCLUSION: Schwannomas and neurofibromas both derive from Schwann cells, but are different entities. They are solitary lesions, except in Von Recklinghausen's disease. They are generally benign, and rarely recur. The recommended surgical treatment is tumor enucleation.

scholarly journals Synovial Sarcoma of the Left Palatine Tonsil Case Report and Review of Literature

2021 ◽  
Vol 3 (4) ◽  
pp. 01-05
Author(s):  
Nasir A. Magboul ◽  
Mubarak AlQahtani ◽  
Abdulwahid S. ALQahtani ◽  
Taqwa Abdullah M Osman
Keyword(s):  
Head And Neck ◽  
Synovial Sarcoma ◽  
English Language ◽  
Neck Region ◽  
Soft Tissue Tumors ◽  
Palatine Tonsil ◽  
Anatomical Site ◽  
Review Of Literature ◽  
Unusual Site ◽  
Head And Neck Region

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.

scholarly journals Schwannoma with an Uncommon Upper Lip Location and Literature Review

2013 ◽  
Vol 2013 ◽  
pp. 1-3 ◽  
Author(s):  
Tuba Bayindir ◽  
M. Tayyar Kalcioglu ◽  
Mehmet T. Cicek ◽  
Nese Karadag ◽  
Abdurrahman Karaman
Keyword(s):  
Literature Review ◽  
Head And Neck ◽  
Schwann Cells ◽  
Neck Region ◽  
Benign Tumors ◽  
Pediatric Age ◽  
Upper Lip ◽  
Head And Neck Region ◽  
Nerve Sheath ◽  
Fourth Decade

Schwannomas are usually single, encapsulated, and benign tumors of the nerve sheath that arise from the perineural Schwann cells. Schwannomas are mostly seen in the fourth decade. Despite its location in the head and neck region is 25–45%, lip location of schwannoma are very rare. We present a case of a upper lip schwannoma in the pediatric age and review the literature.

scholarly journals Giant solitary neurofi broma presenting as a neck mass in an infant

2010 ◽  
Vol 01 (01) ◽  
pp. 32-34 ◽  
Author(s):  
Sankalp Dwivedi ◽  
Nitish Baisakhiya ◽  
Arvind Bhake ◽  
Manisha Bhatt ◽  
Amit Agrawal
Keyword(s):  
Head And Neck ◽  
Neck Region ◽  
Neck Mass ◽  
Rare Tumor ◽  
Head And Neck Region ◽  
Parotid Region ◽  
The Third ◽  
Fourth Decade

ABSTRACTSolitary neurofi broma is a rare tumor of the head and neck region. It is more common in viscera, where it is associated with features of NF1. It occurs most often between the third and fourth decade. These lesions are extremely rare in infants. We report a case of giant, solitary neurofi broma presenting as a progressive mass in parotid region in an infant. This case is unique in its age of presentation (11 months), site, size (about 8 x 15 cm) without any symptoms or neurological defi cit.

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