Schwannom Nervus vagus

An unusual
case of latero-cervical swelling. B-mode evaluation shows a solid homogeneous mass (arrowheads) compressing the jugular vein (J). Continuity with the vagus nerve is hypothesized (arrows).
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An unusual
case of latero-cervical swelling. Color-Doppler evaluation shows mild vascularity inside the lesion.
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An unusual
case of latero-cervical swelling. A hyperintense, encapsulated mass (arrowheads) occupies the right carotid space and lies between the common carotid artery and the jugular vein, displaced postero-laterally. Its connection with the vagus nerve may be seen (arrows).
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An unusual
case of latero-cervical swelling. A hyperintense, encapsulated mass (arrowheads) occupies the right carotid space and lies between the common carotid artery and the jugular vein, displaced postero-laterally.
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An unusual
case of latero-cervical swelling. Fat-saturated T1-weighted TSE sequences after administration of gadolinium-based contrast agent show heterogeneous enhancement of the mass (arrowheads).
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An unusual
case of latero-cervical swelling. Fat-saturated T1-weighted TSE sequences after administration of gadolinium-based contrast agent show heterogeneous enhancement of the mass (arrowheads).
www.eurorad.org • CC by-nc-sa-4.0
A radiologic
review of hoarse voice from anatomic and neurologic perspectives. Vagal Schwannoma. A 53-year-old man with months of cough and hoarseness, thought to be reflux but not improved with proton pump inhibitor. Axial T2 (a), axial post-contrast T1 (b, c), and coronal post-contrast T1 (d) MR images reveal a well-circumscribed enhancing mass (arrows) with cystic components extending through the right jugular foramen (note the "waist") into the carotid space. The right internal jugular vein (arrowheads) is compressed within the carotid sheath. Findings are characteristic for a vagal schwannoma, with intracranial and extracranial extent
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Radiopaedia • CC-by-nc-sa 3.0 • de

Vagal schwannomas are uncommon benign masses that can occur anywhere along the course of the vagus nerve but most commonly occur in the cervical region.

Epidemiology

Most commonly occurs in the 3rd to 5th decades. No sex predilection .

Clinical presentation

Patients may be asymptomatic. When symptomatic they can present with a slow-growing mass, most commonly in the neck. Vocal hoarseness or cough on palpation of the neck mass may be features .

Pathology

Associations

Radiographic features

Vagal schwannomas are closely adherent to the vagus nerve, which lies between the internal carotid artery (ICA) and internal jugular vein (IJV) and tends to separate them as well as displacing the ICA anteromedially .

See the general schwannoma article for further discussion of radiographic features.

Differential diagnosis

For cervical region consider :

Siehe auch:
und weiter:
Assoziationen und Differentialdiagnosen zu Schwannom Nervus vagus:
Schwannom
 
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