A large, painless mass in the submandibular space

Anterior Midline Glossotomy Approach for Large Schwannoma of the Tongue: Case Report

Schwannoma corresponds to a benign neurogenic tumor, derived from neural crest cells. It accounts for approximately 5% of all benign soft tissue tumors. These are the most common cause of peripheral nerve neoplasms of the oral cavity and oropharynx representing 1%. Isolated or solitary neurofibromas of the oral cavity usually involve the tongue or the labial mucosa. They appear as soft, painless, slow-growing masses that are tender to depression or palpation. The case of a 40-year-old woman is studied because of the presence of painless swelling, slow, and progressive growth of the oral language. Complete removal of the lesion was performed and primary closure was performed. It had a satisfactory evolution, maintaining adequate sensory and sensory mobility and innervation.

Schwannoma (Neurilemmoma) on the Base of the Tongue: A Rare Clinical Case

Patient: Female, 20

Final Diagnosis: Schwannoma of the tongue

Symptoms: Dysarthria • dysphagia

Medication: —

Clinical Procedure: Excision of the mass via trans-oral approach

Specialty: Surgery

Schwannomas of the head and neck: a case series

Schwannomas are relatively slow growing benign tumors of the nerve sheath with a well developed capsule. They can reach a considerable size. Typically, symptoms of schwannomas are based on the affected nerve. We present four cases of this tumor that occurred in the head and neck. The differential diagnosis of small painless nodules in head and neck must include schwannomas as it is likely that nerve sheath neoplasms are more common than previously reported. However, due to benign nature and low recurrence prognosis is excellent.

Interpretation of the origin of a submandibular mass by CT and MRI imaging

OBJECTIVE

To clarify the useful findings for determining whether the submandibular mass is intraglandular or extraglandular.

STUDY DESIGN

Forty-eight patients with swelling of the submandibular region were reviewed. The relationship between the lesion and the submandibular gland and the displacement of the anterior facial vein were analyzed.

RESULTS

The accuracy of the predictions based on the relationship between the lesion and the submandibular gland (SMG) was 87% on contrast-enhanced CT (CECT), 85% on CT sialography (CTS), and 91% on MRI. Although the displacement of the facial vein outside the lesion suggested an intraglandular lesion, and inside the lesion suggested an extraglandular lesion, these were not sufficient to differentiate the lesions in 7 out of 23 CECT cases and 4 out of 11 MRI cases.

CONCLUSION

The finding of a relationship between the lesion and the SMG is the most important finding of this study.

A multifocal neurinoma of the hypoglossal nerve with motor paralysis confirmed by electromyography

A rare case of neurinoma in a 72 year-old Japanese woman derived from the hypoglossal nerve is reported. The tumour was composed of three interconnected nodules occurring simultaneously in the left submandibular and sublingual regions. The lesion, which presented as a neck mass, caused a slight left-sided hemiparesis of the tongue with tongue deviation to the affected side not noticed by the patient. An electromyographic (EMG) study revealed decreased muscle activity on the left side of the tongue muscle, indicating dysfunction of the hypoglossal nerve. EMG was useful for diagnosis.

Sublingual hypoglossal neurilemmoma. Case report

Neurilemmomas of the peripheral segment of the hypoglossal nerve are extremely uncommon neoplasms. A rare case of hypoglossal neurilemmoma located in the sublingual space is reported and the differential diagnosis of sublingual mass lesions is discussed.

Oral manifestations and differential diagnosis of isolated hypoglossal nerve palsy: report of two cases

Isolated hypoglossal nerve palsy is rare, but occasionally it appears as the initial or solitary sign of an intracranial or extracranial space-occupying lesion, a head and neck injury, or a vascular abnormality of the internal carotid artery. Therefore it should be considered in differential diagnosis. We report two cases of isolated unilateral hypoglossal nerve palsy. In Case 1 the cause of the palsy appeared to be hypoglossal nerve neurilemmoma within the hypoglossal canal, whereas in Case 2 the cause could not be identified. Neither patient complained of any disability other than slight dysarthria. The tongue deviated toward the healthy side at rest and toward the affected side on protrusion. Hemiatrophy of the tongue with fatty displacement was demonstrated by means of T1-weighted magnetic resonance imaging. Dentists who might at times see patients with isolated hypoglossal nerve palsy should be aware of the significance of its oral manifestation, and they should be able to perform differential diagnosis of patients with the condition who appear for treatment.