scholarly journals Benign schwannoma of the maxillary antrum

2016 ◽  
Vol 10 (02) ◽  
pp. 281-285 ◽  
Author(s):  
Oshin Hegde ◽  
Dinkar Desai ◽  
Gowri P. Bhandarkar ◽  
Tony Paul
Keyword(s):  
Rare Case ◽  
Clinical Presentation ◽  
Maxillary Antrum ◽  
Nasal Bone ◽  
Neck Region ◽  
Cell Tumor ◽  
Nerve Sheath Tumor ◽  
Head And Neck Region ◽  
Benign Schwannoma ◽  
Nerve Sheath

ABSTRACTSchwannoma also known commonly as neurilemmoma and schwann cell tumor is a benign nerve sheath tumor. About 1/3rd cases of schwannoma arise from the head and neck region but rarely from the nasal and paranasal sinuses. The recurrence rate in these cases has reported to be very rare. We report a rare case of schwannoma in a 60-year-old woman arising from the maxillary sinus further eroding the orbital floor and nasal bone. We have also described the clinical presentation, radiological, histological findings, and management of the case.

scholarly journals Microcystic/Reticular Schwannoma of the Frontal Lobe: An Unusual Occurrence

2017 ◽  
Vol 2017 ◽  
pp. 1-5 ◽  
Author(s):  
Lauren Pearson ◽  
Erinc Akture ◽  
Julien Wonderlick ◽  
Gregory Fuller ◽  
Maryam Zenali
Keyword(s):  
Frontal Lobe ◽  
Cranial Nerves ◽  
Neck Region ◽  
Nerve Sheath Tumor ◽  
Head And Neck Region ◽  
Peripheral Nerve Sheath Tumor ◽  
Reticular Pattern ◽  
Nerve Sheath ◽  
First Case ◽  
Unusual Occurrence

Schwannoma is a benign peripheral nerve sheath tumor that typically involves cranial nerves of the head and neck region. Intraparenchymal occurrence of this tumor is uncommon. Even rarer in this site is the microcystic/reticular pattern of schwannoma. This histologic variant, first described in 2008, has a predilection for visceral organs. Herein, we report the first case of microcystic/reticular schwannoma of the frontal lobe.

Palatal Schwannoma: A Rare Case Report

2016 ◽  
Vol 8 (1) ◽  
pp. 29-31
Author(s):  
Nikhil Arora ◽  
PS Shahul Hameed
Keyword(s):  
Case Report ◽  
Oral Cavity ◽  
Schwann Cells ◽  
Rare Case ◽  
Benign Tumor ◽  
Neck Region ◽  
Head And Neck Region ◽  
Nerve Sheath ◽  
Rare Case Report ◽  
Slow Growing

ABSTRACT Schwannoma is a benign tumor that originates from perineural Schwann cells of nerve sheath. They are solitary, wellencapsulated, slow-growing adjacent to the parental nerve but extrinsic to the nerve fascicles. Approximately 25 to 45% of all schwannomas are seen in the head and neck region and are found rarely in the oral cavity. Most of the intraoral schwannomas are located in the tongue. Palatal schwannoma is very rare as till date and only 16 cases have been reported; one such rare case we came across is reported here. How to cite this article Hameed PSS, Arora N, Malhotra V. Palatal Schwannoma: A Rare Case Report. Int J Otorhinolaryngol Clin 2016;8(1):29-31.

A TRUE MALIGNANT SCHWANNOMA OF THE EIGHTH CRANIAL NERVE

Neurosurgery ◽  
2007 ◽  
Vol 61 (2) ◽  
pp. E421-E422 ◽  
Author(s):  
L. Fernando Gonzalez ◽  
Gregory P. Lekovic ◽  
Jennifer Eschbacher ◽  
Stephen Coons ◽  
Robert F. Spetzler
Keyword(s):  
Cranial Nerve ◽  
Benign Tumor ◽  
Clinical Presentation ◽  
Malignant Schwannoma ◽  
Nerve Sheath Tumor ◽  
Eighth Cranial Nerve ◽  
Tumor Bed ◽  
Second Stage ◽  
Benign Schwannoma ◽  
Nerve Sheath

Abstract OBJECTIVE The clinical presentation, pathology, treatment, and outcome of a 43-year-old woman with a malignant peripheral nerve sheath tumor arising from a benign schwannoma of the eighth cranial nerve are presented. CLINICAL PRESENTATION Initially, the tumor was debulked. After finding malignant areas within the benign tumor, it was considered to be a malignant transformation of a previously benign tumor. INTERVENTION Aggressive total resection was obtained during a second-stage procedure. Postoperatively, the tumor bed was radiated for palliation. CONCLUSION Despite surgery, radiation, and chemotherapy, the patient died rapidly as a result of disseminated metastatic disease.

scholarly journals MALIGNANT PERIPHERAL NERVE SHEATH TUMOUR IN A 12 YEARS GIRL

2015 ◽  
Vol 22 (07) ◽  
pp. 973-977
Author(s):  
Samuel Seseja ◽  
Jeremiah Moshy
Keyword(s):  
Peripheral Nerve ◽  
Poor Prognosis ◽  
Rare Case ◽  
Neck Region ◽  
Biological Behavior ◽  
Rare Entity ◽  
Head And Neck Region ◽  
Nerve Sheath ◽  
Rare Malignancy ◽  
Peripheral Nerve Sheath Tumour

Malignant peripheral nerve sheath tumours (MPNSTs) are rare, aggressive softtissue sarcomas associated with poor prognosis, that most commonly affect patients aged20 to 50 years, but have also been reported in children. The tumour is usually found in lowerextremities and only 10% to 20% of all lesions occur in head and neck region thus making ita rare entity. Central involvement, particularly in the jawbones is quite unusual. There is littlereported in literature on these tumors in Africa. Here we report a rare case of intraosseousMPNSTS occurring in the mandible in a 12-years old girl. The biological behavior and diagnosticchallenges of this rare malignancy are discussed.

scholarly journals An unusual giant schwannoma over face diagnosed on FNAC: a case report

2019 ◽  
Vol 5 (7) ◽  
pp. 181
Author(s):  
Minakashi Chouhan ◽  
Mukul Singh ◽  
Shweta Sushmita ◽  
Juhi Shahab ◽  
Rashmi Arora
Keyword(s):  
Neck Region ◽  
Posterior Mediastinum ◽  
Nerve Sheath Tumor ◽  
Facial Deformity ◽  
Head And Neck Region ◽  
Peripheral Nerve Sheath Tumor ◽  
Nerve Sheath ◽  
Giant Schwannoma ◽  
S 100 ◽  
Slow Growing

<p>Schwannoma is a slow growing benign peripheral nerve sheath tumor arising from schwann cells. It is also known as neurilemmoma. Although it is common in the head and neck region, it rarely exceeds 10 cm in size. Usually Schwannomas are not larger than 5 to 6 cm in diameter. Large tumors are uncommon and are found in posterior mediastinum or retroperitoneum. We are presenting an unusual giant cell schwannoma over face (cheek) measuring 12×10 cms in size which caused facial deformity to the patient. The tumor was diagnosed on FNAC where cell block was prepared and IHC was done which showed S-100 positivity. This size schwannoma over cheek site has not been reported in the literature as far our knowledge. Therefore this case is unique for its size over face.</p>

scholarly journals Intraosseous ancient Schwannoma: A rare case in the mandible and a literature review

Rare Tumors ◽  
2021 ◽  
Vol 13 ◽  
pp. 203636132110264
Author(s):  
Neda Kardouni Khoozestani ◽  
Maziar Motiee-Langroudi ◽  
Ali Salehi ◽  
Paniz Ranji
Keyword(s):  
Literature Review ◽  
Rare Case ◽  
Benign Tumor ◽  
Treatment Plan ◽  
Neck Region ◽  
Radiographic Findings ◽  
Head And Neck Region ◽  
Nerve Sheath Tumors ◽  
Nerve Sheath ◽  
Infrequent Event

Schwannoma, otherwise known as neurilemmoma, is a benign tumor that originates from Schwann cells. Ancient Schwannoma is a long-standing Schwannoma with degenerative and xanthomatous changes. The Head and neck region is one of the most common sites for nerve sheath tumors but Involvement of the jaw is a considerably infrequent event. We report a rare case of intraosseous ancient Schwannoma of the mandible in a 24-year-old male patient which was initially misdiagnosed with carcinoma. The clinical features, radiographic findings, and treatment plan are discussed. Furthermore, a thorough literature review demonstrated nine published cases of intra-osseous ancient Schwannoma with their summarized features. Recognition of various histopathologic features of ancient Schwannoma is essential to prevent over-treatment.

scholarly journals Parapharyngeal Schwannoma- A Rare Case Report

2021 ◽  
Author(s):  
Aditi Venkat Goyal ◽  
Samarth Shukla ◽  
Sourya Acharya ◽  
Sunita Vagha
Keyword(s):  
Rare Case ◽  
Clinical Presentation ◽  
Parapharyngeal Space ◽  
Present Report ◽  
Neck Region ◽  
Surgical Excision ◽  
Lateral Part ◽  
Anatomical Location ◽  
Head And Neck Region ◽  
Rare Case Report

The incidence of schwannomas is 25-45% in the head and neck region but less than 0.5% when restricted to the parapharyngeal space. The clinical presentation of this lesion varies depending on the anatomical location of its occurrence and thus does the treatment modality. Present report is a case of a 20-year-old female who reported to the Department of Otorhinolaryngology with swelling in the lateral part of the neck which was subsequently diagnosed as schwannoma and appropriate surgical excision was done. Histopathology of the excision lesion confirmed the diagnosis. It becomes crucial to report and revise the tumours of the parapharyngeal space because of the complexity of the area.

Malignant Nerve Sheath Tumor of the Right Cerebral Peduncle: Case Report

Neurosurgery ◽  
2004 ◽  
Vol 54 (2) ◽  
pp. 500-504 ◽  
Author(s):  
Patrick Beauchesne ◽  
Jean-François Mosnier ◽  
Thierry Schmitt ◽  
Jacques Brunon
Keyword(s):  
Stereotactic Biopsy ◽  
Clinical Presentation ◽  
Positive Response ◽  
Cerebral Peduncle ◽  
Nerve Sheath Tumor ◽  
Chemotherapy Treatment ◽  
Nerve Sheath Tumors ◽  
Nerve Sheath ◽  
The Right ◽  
First Time

Abstract OBJECTIVE AND IMPORTANCE Schwannomas occurring in the neuraxis are very rare. Usually, these tumors are benign. Primary malignant intracerebral nerve sheath tumors are extremely rare, with only five documented cases in the international literature. We report one case of a primary malignant intracerebral nerve sheath tumor occurring in the right cerebral peduncle of a 35-year-old man. CLINICAL PRESENTATION Magnetic resonance imaging revealed a heterogeneous peripherally enhancing mass of the right cerebral peduncle, surrounded by a small edema. INTERVENTION Unlike the five cases previously reported, this is the first time a stereotactic biopsy has been performed, and this is the only patient who responded to cranial radiation therapy for approximately 2 years. When the tumor recurred, a systemic chemotherapy treatment was prescribed. No positive response was seen, and the patient died 29 months after the initial diagnosis. CONCLUSION An accurate diagnosis and planned aggressive treatment seem to be the key elements in the management of the disease.

scholarly journals Large-extension osteosarcoma with involvement of multiple maxillofacial structures: a rare case report

2020 ◽  
Vol 9 (10) ◽  
pp. e1519108461
Author(s):  
Rani Iani Costa Gonçalo ◽  
Cristiane Kalinne Santos Medeiros ◽  
Humberto Pereira Chaves Neto ◽  
Janaina Lessa de Moraes dos Santos ◽  
Adriano Rocha Germano ◽  
...  
Keyword(s):  
Rare Case ◽  
Correct Diagnosis ◽  
Malignant Neoplasm ◽  
Neck Region ◽  
Primary Treatment ◽  
Histopathological Diagnosis ◽  
Anatomical Structures ◽  
Case Presentation ◽  
Head And Neck Region ◽  
Rare Case Report

Background: Osteosarcoma is a malignant neoplasm that occurs most often in long bones, with the head and neck region being rarely affected, accounting for less than 1% of all cancers in this region. Objective: To report a rare case of a large-extension osteosarcoma with emphasis on its clinical and diagnostic aspects. Case presentation: A 43-year-old woman presenting an intraoral exophytic lesion with involvement of other maxillofacial structures, such as nostril, zygoma and orbit. Despite the initial clinical diagnosis of actinomycosis, an incisional biopsy confirmed the histopathological diagnosis of osteosarcoma, showing a wide morphological variety. Conclusion: This case highlights the importance of clinical and histopathological findings for the correct diagnosis of osteosarcoma. Moreover, it shows that, although surgical resection is the primary treatment for this neoplasia, depending on the extent of the tumor and its proximity to vital anatomical structures, the most appropriate conduct is not always feasible.

scholarly journals Extremely rare case of retropharyngeal space benign plexiform schwannoma - Excised through Smith- Robinson Approach

2020 ◽  
Vol 11 ◽  
pp. 182
Author(s):  
Rajendra Sakhrekar ◽  
Vishal Peshattiwar ◽  
Ravikant Jadhav ◽  
Bijal Kulkarni ◽  
Sanjiv Badhwar ◽  
...  
Keyword(s):  
Cervical Spine ◽  
Rare Case ◽  
Neck Region ◽  
Retropharyngeal Space ◽  
Case Description ◽  
Head And Neck Region ◽  
Plexiform Schwannoma ◽  
Spine Mr ◽  
The Right ◽  
Slow Growing

Background: Approximately 25–45% of schwannomas are typically slow-growing, encapsulated, and noninvasive tumors that occur in the head-and-neck region where they rarely involve the retropharyngeal space. Here, we report deep-seated benign plexiform schwannoma located in the retropharyngeal C2-C5 region excised utilizing the Smith-Robinson approach. Case Description: A 30-year-old male presented with dysphagia and impaired phonation attributed to an MR documented C2-C5 retropharyngeal schwannomas. On examination, the lesion was soft, deep seated, and extended more toward the right side of the neck. Utilizing a right-sided Smith-Robinson’s approach, it was successfully removed. The histopathology confirmed the diagnosis of a plexiform schwannoma. Conclusion: Retropharyngeal benign plexiform schwannomas are rare causes of dysphagia/impaired phonation in the cervical spine. MR studies best document the size and extent of these tumors which may be readily resected utilizing a Smith-Robinson approach.

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