Hypoglossal Schwannoma of Neck: Case Report and Review of Literature

Plitt, Aaron; Ahmadieh, Tarek Y. El; Bindal, Shivani; Myers, Larry L.; White, Jonathan A.; Gluf, Wayne M.

doi:10.1016/j.wneu.2017.11.069

Cited by 15 publications

(27 citation statements)

References 12 publications

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“…Findings for the nerve of origin matched the literature: <5% brachial plexus, 2-5% vagus nerve, and >5% other cranial motor nerves such as the hypoglossal nerve [1,6,11]. On the other hand, 11% of the present locations were parapharyngeal, compared to <5% in the literature [3,4]; further studies of this location would be worthwhile.…”

Section: Schwannomasupporting

confidence: 80%

Peripheral neck nerve tumor: A 73-case study and literature review

Boumaza

Michel

Salaud

et al. 2019

European Annals of Otorhinolaryngology, Head and Neck Diseases

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Section: Schwannomasupporting

confidence: 80%

Peripheral neck nerve tumor: A 73-case study and literature review

Boumaza

Michel

Salaud

et al. 2019

European Annals of Otorhinolaryngology, Head and Neck Diseases

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“…In case.1 of our study, the tumor displayed a heterogeneously equal signal on T1-weighted images, and showed a heterogeneously high signal on T2-weighted images. The hyperintensity of hypoglossal schwannomas on T1 images can be variable depending on the predominance of Antoni B fibers [ 22 ].…”

Section: Discussionmentioning

confidence: 99%

Diagnosis and management of hypoglossal nerve-derived schwannoma in the floor of mouth: a case series

Zhong

Zhou

et al. 2022

BMC Oral Health

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Background Schwannomas or neurilemmomas are well-encapsulated, benign, solitary, and slow-growing tumors that originate from Schwann cells of the nerve sheath. Extracranial schwannoma is reported to have a relatively high incidence in the tongue while an extremely low incidence in the floor of mouth. In the current study, we presented the first case series of hypoglossal nerve-derived schwannoma in the floor of mouth in Asia. Methods A retrospective study of 9 surgical cases of hypoglossal nerve-derived schwannoma in the floor of mouth was performed. The patient and tumor characteristics were evaluated by physical, radiological and pathological examination. Details of operation and complications were also recorded. Results Hypoglossal nerve-derived schwannoma in the floor of mouth showed a well-defined boundary with a firm texture, smooth surface and good mobility on palpation. The median maximum diameter of the tumors was 4.3 cm (range 2.8–7.0 cm). The median operative time and bleeding volumes were 89.4 min (range 47–180 min) and 99.2 mL (range 15–200 mL), respectively. All cases received complete surgical excision. Conclusion In this study, we presented the diagnosis and management of hypoglossal nerve-derived schwannoma in the floor of mouth for the first time in Asia. The study provided us with a recommendation for consideration of the diagnosis of hypoglossal schwannoma when a patient presents with a mass in the floor of mouth.

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“…Additionally, schwannomas can present with radiological characteristics comparable to CBP [ 13 , 15 , 16 ] so that, under these circumstances, peripheral hypoglossal schwannomas can anatomically, clinically, and radiologically closely mimic carotid body paragangliomas. To date, only two cases of hypoglossal schwannomas located at the carotid bifurcation have been reported [ 12 , 17 ], and we herein present the third case in the English literature.…”

Section: Discussionmentioning

confidence: 99%

Schwannoma of the Hypoglossal Nerve Mimicking Carotid Body Paraganglioma

et al. 2022

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Carotid body paragangliomas (CBPs) clinically present as highly vascularized cervical masses with a pathognomonic localization at the carotid artery bifurcation. Following ultrasonography and MRI/CT imaging, surgical resection with optional preoperative embolization is considered as the treatment of choice in most cases. We herein present the case of a 60-year-old female with characteristic clinical signs and imaging findings of a right-sided CBP who finally went to surgical treatment. Intraoperatively, the tumor showed an adherent growth to the hypoglossal nerve that had to be partially resected, resulting in a postoperative nerve palsy. Histological examination of the resected tumor revealed the unexpected diagnosis of a hypoglossal nerve schwannoma. To the best of our knowledge, we herein present the third case reported in the literature of a unilateral hypoglossal schwannoma located at the carotid bifurcation mimicking clinical symptoms, imaging and intraoperative findings of a CBP.

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Hypoglossal Schwannoma of Neck: Case Report and Review of Literature

Cited by 15 publications

References 12 publications

Peripheral neck nerve tumor: A 73-case study and literature review

Peripheral neck nerve tumor: A 73-case study and literature review

Diagnosis and management of hypoglossal nerve-derived schwannoma in the floor of mouth: a case series

Schwannoma of the Hypoglossal Nerve Mimicking Carotid Body Paraganglioma

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