Hypoglossal Schwannoma of Parapharyngeal Space: An Unusual Case Report

Ram, Hari; Agrawal, Siddharth; Husain, Nuzhat; Chakrabarti, Swagnik

doi:10.1007/s12663-011-0308-8

Cited by 13 publications

(6 citation statements)

References 15 publications

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“…Independently from the nerve that is affected, surgical treatment consists of systematic exeresis of the lesions. This has been furthermore confirmed by the experience of the present authors and by case reports (2,(9)(10)(11)(12)(13)(14)(15)(16)(17)(18)(19)(20)(21)(22)(23)(24)(25)(26)(27)(28)30,31). In fact, all except one of the cases were treated surgically.…”

Section: Imaging and Diagnosissupporting

confidence: 86%

“…In almost all cases, there are varying degrees of paresis of the HyN, which appear as ipsilateral deviation, hemiatrophy and fasciculations of the tongue. These symptoms may be accompanied by hoarseness, intermittent-to-persistent headaches, dysarthria, slurred speech, swallowing difficulties and throat cramps (2,4,(9)(10)(11)(12)(13)(14)(15)(16)(17)(18)(19)(20)(21)(22)(23)(24)(25)(26)(27)(28). Whereas the effects on the specific functions of the nerve may be attributable to the local damage of the tumour on the nerve, these types of lesions, particularly when they increase in volume, may determine mass effects on surrounding or adjacent structures; for example, Mariniello et al (19) reported on the case of a patient who exhibited signs of cerebellar ataxia, right-sided hypotonia and increased intracranial pressure.…”

Section: Discussionmentioning

confidence: 99%

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Schwannoma of the hypoglossal nerve: Review of the literature based on an illustrative case

et al. 2017

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Abstract. Schwannomas are benign tumours that originate from the myelin sheath of peripheral nerves. They are characterised by a slow growth tendency. Benign schwannomas represent 35% of the head and neck district tumours. Hypoglossal schwannomas account for 5% of non-vestibular schwannomas, and malignant schwannomas occur very rarely. In the present case report, the case of a 49-year-old man who presented with paraesthesias in the left parotid and submandibular region, associated with sensation of foreign bodies and dysphagia for solids, is described. A clinical examination revealed the presence of an ovoid palpable mass in the lateral-cervical region of the neck. The patient subsequently underwent excisional surgery, and neuropathological evaluation of the specimen confirmed the diagnosis of benign schwannoma with Antoni areas A and B. Despite the rarity of schwannomas, this condition should be considered in differential diagnoses for masses localised in the neck, as in cases where they reach considerable sizes (>3 cm in diameter). Surgery therefore represents the first-choice treatment.

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Section: Imaging and Diagnosissupporting

confidence: 86%

Section: Discussionmentioning

confidence: 99%

Schwannoma of the hypoglossal nerve: Review of the literature based on an illustrative case

et al. 2017

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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 .…”

Section: Discussionmentioning

confidence: 99%

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

Weng¹,

et al. 2021

Preprint

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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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“…Der N. facialis stellt ebenfalls einen häufig beschriebenen Ursprung für Schwannome des Kopf-Hals-Bereichs dar, deren Lokalisation häufig intraparotideal, im Bereich des Felsenbeins (Ganglion geniculi) oder am Kleinhirnbrückenwinkel liegt [7,8]. Deutlich seltener wurden Fälle von Schwannomen des N. hypoglossus publiziert [9].…”

Section: Introductionunclassified

Extrakranielle Schwannome im Kopf-Hals-Bereich: Klinische Implikationen anhand von 20 Fällen

et al. 2017

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Schwannomas are rare benign tumors originating from the perineural cells forming the myelin layer in the peripheral nervous system (PNS). While well established therapeutic concepts exist for intracranial schwannomas, there is a lack of consistent clinical standards for extracranial schwannomas. This retrospective study describes the clinical pathway of 20 patients with histologically proven extracranial schwannomas of the head and neck. The diagnostic and therapeutic strategies for schwannomas are discussed with special emphasis on localization and functional outcome. Extracranial schwannomas of the head and neck region mostly originated from the facial nerve (n = 4), vagal nerve (n = 4) or sympathetic chain (n = 3). Most common symptoms were swelling (n = 12) and pain (n = 3). Preoperative imaging included MRI (n = 13), ultrasound (n = 12) and CT (n = 3). Surgical intervention was performed in 18 cases (n = 14 complete extirpation, n = 3 partial extirpation, n = 1 unknown). Regarding completely extirpated schwannomas of motor nerves (n = 10) severing the nerve of origin was more often required in patients with a preexisting functional deficit (3 out of 4 = 75 %) than in patients without preexisting deficits (2 out of 6 = 33 %). Representing rare tumors of the head and neck region mostly originating from the facial nerve, sympathetic chain or caudal cranial nerves extracranial schwannomas require a systematic diagnostic and therapeutic approach. Postoperative functional deficits after complete extirpation must especially be anticipated in patients with a preexisting functional deficit.

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Hypoglossal Schwannoma of Parapharyngeal Space: An Unusual Case Report

Cited by 13 publications

References 15 publications

Schwannoma of the hypoglossal nerve: Review of the literature based on an illustrative case

Schwannoma of the hypoglossal nerve: Review of the literature based on an illustrative case

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

Extrakranielle Schwannome im Kopf-Hals-Bereich: Klinische Implikationen anhand von 20 Fällen

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