Hypoglossal schwannomas: A systematic review of the literature

Bindal, Shivani; Ahmadieh, Tarek Y. El; Plitt, Aaron; Aoun, Salah G.; Neeley, Om James; Tecle, Najib E. El; Barnett, Samuel L.; Gluf, Wayne M.

doi:10.1016/j.jocn.2018.11.037

“…Schwannomas are benign neoplasms of the myelin-producing Schwann's cells which are always slow growing and affect sensory nerves 7 . Extracranial hypoglossal nerve schwannomas are exceedingly rare and have a greater preponderance among women [8][9][10] . The case in this study have similar characteristics with the previous studies.…”

Section: Discussionmentioning

confidence: 99%

“…Then, the tumor was excised with preservation of hypoglossal nerve and submandibular gland. Due to the limit reports, the outcomes in nerve preservation versus sacri ce during surgical resection were uncertain but the overall outcomes in both are favorable 10 . If the hypoglossal schwannoma was identi ed preoperatively, the smaller surgical incision could be performed for only dissecting hypoglossal nerve and tumor.…”

Section: Discussionmentioning

confidence: 99%

Hypoglossal schwannoma masquerading as a submandibular gland tumor: a case report

Weng¹,

Li

²

,

Wu

³

et al. 2021

Preprint

0

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Background: Hypoglossal nerve schwannoma in the submandibular space is rare. This case report presents the treatment of a young patient affected by an unusual hypoglossal nerve schwannoma at the right side of the submandibular region. Case representation: A 31-year-old female presented to our department with complaints of a right-sided submandibular region mass. None calculi was observed by CBCT. An MRI of the neck demonstrating a 18×12mm mass located at the submandibular region. Based on clinical presentation and imaging, a diagnosis of a submandibular gland tumor was conferred and the patient scheduled for excision. Intraoperatively, the mass was noted to arise from the hypoglossal nerve, remaining independent of the submandibular gland. On histopathologic analysis, the mass was determined to be consistent with hypoglossal schwannoma. Conclusion: Though rare, the hypoglossal schwannoma should remain a consideration in the evaluation of a submandibular space mass. During operation, it might be better to explore the mass before managing the submandibular gland.

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“…Extracranial hypoglossal nerve schwannomas often present as a solitary, painless neck mass in the neck 11 . Most of the patients commonly have tongue deviation and speech disturbance, but small portion of the patients presented without any neurological symptoms 10 . In this study, the patient didn't have the history of the tongue deviation.…”

Section: Discussionmentioning

confidence: 99%

“…MRI played an key role in preoperative diagnosis of the tumor and was the most frequently used imaging modality 10 . Hypoglossal nerve schwannomas exhibit hypointense or isointense on T1, hyperintense on T2, with heterogeneous enhancement on contrast-enhanced studies 4,12,13 .…”

Section: Discussionmentioning

confidence: 99%

Hypoglossal Schwannoma Masquerading as a Submandibular Gland Tumor: a Case Report

Weng¹,

Li

²

,

Wu

³

et al. 2021

Preprint

0

View full text Add to dashboard Cite

Background: Hypoglossal nerve schwannoma in the submandibular space is rare. This case report presents the treatment of a young patient affected by an unusual hypoglossal nerve schwannoma at the right side of the submandibular region. Case representation: A 31-year-old female presented to our department with complaints of a right-sided submandibular region mass. None calculi was observed by CBCT. An MRI of the neck demonstrating a 18×12mm mass located at the submandibular region. Based on clinical presentation and imaging, a diagnosis of a submandibular gland tumor was conferred and the patient scheduled for excision. Intraoperatively, the mass was noted to arise from the hypoglossal nerve, remaining independent of the submandibular gland. On histopathologic analysis, the mass was determined to be consistent with hypoglossal schwannoma. Conclusion: Though rare, the hypoglossal schwannoma should remain a consideration in the evaluation of a submandibular space mass. During operation, it might be better to explore the mass before managing the submandibular gland.

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“…In 2 reviews of the literature consisting of 94 and 160 cases, the following distribution has been reported: type A, 29-32%; type B, 39-50%; and type C, 21-29%. 42,46…”

Section: Classificationmentioning

confidence: 99%

Trends in the Management of Non-Vestibular Skull Base and Intracranial Schwannomas

Suárez¹,

López²,

Mendenhall³

et al. 2021

CMAR

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The aim of this review is to analyze the latest trends in the management of nonvestibular skull base and intracranial schwannomas in order to optimize tumor control and quality of life. Non-vestibular cranial nerve schwannomas are rare lesions, representing 5-10% of cranial nerve schwannomas. Management decisions should be individualized depending on tumor size, location and associated functional deficits. Generally, large sized schwannomas exerting significant mass effect with increased intracranial pressure are treated surgically. In some cases, even after optimal skull base resection, it is not possible to achieve a gross total resection because tumor location and extent and/or to reduce morbidity. Thus, subtotal resection followed by stereotactic radiosurgery or fractioned radiotherapy offers an alternative approach. In certain cases, stereotactic radiosurgery or radiotherapy alone achieves good tumor control rates and less morbidity to gross total resection. Finally, given the slow growth rate of most of these tumors, observation with periodic radiographic follow-up approach is also a reasonable alternative for small tumors with few, if any, symptoms.

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Hypoglossal schwannomas: A systematic review of the literature

Cited by 29 publications

References 60 publications

Hypoglossal schwannoma masquerading as a submandibular gland tumor: a case report

Hypoglossal schwannoma masquerading as a submandibular gland tumor: a case report

Hypoglossal Schwannoma Masquerading as a Submandibular Gland Tumor: a Case Report

Trends in the Management of Non-Vestibular Skull Base and Intracranial Schwannomas

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