Paragangliom des Nervus vagus
Glomus vagale tumors are paragangliomas that occur along the path of the vagus nerve (CN X). They are a subset of extra-adrenal neuroendocrine tumors that are derived from the nonchromaffin paraganglion cells.
Clinical presentation
Typically presents as a painless mass behind the carotid artery. Vocal cord paralysis is a relatively frequent finding (~47%) .
Pathology
For a general discussion on the pathology for these tumors, please refer to the parental article on paragangliomas.
Location
Although they could occur at a similar position to carotid body tumors they tend to be more rostral in location and do not widen the carotid bifurcation. They displace the internal and external carotid arteries anteriorly, and the internal jugular vein posteriorly .
Radiographic features
Ultrasound
Difficult to sonographically differentiate between other lesions that can potentially occur in this location. It may be seen as a solid heterogeneously hypoechoic lesion comprising small vascular structures .
MRI
- T1: usually low signal
- T2: high signal with multiple flow voids, which may give a salt and pepper appearance
- T1C+: intense enhancement
Differential diagnoses
The differential for lesions in this location include :
- vagal schwannoma/neurofibroma
- carotid space meningioma (extends from jugular foramen)
Siehe auch:
- Cavum tympani
- Glomus caroticum Tumor
- Paragangliom
- spinal paraganglioma
- Glomus jugulare Tumor
- Phäochromozytom
- carotid bifurcation
- carotid body
- glomangioma
- Harnblase
- Nervus glossopharyngeus
- glomus body
- pulssynchrones Ohrgeräusch
- Foramen jugulare
- Glomustumor am Finger
- glomus tympanicum tumour
- non chromaffin paraganglion cells
- salt and pepper
- jacobson's nerve
- nonchromaffin paraganglion cells
- Vernet's syndrome
- Arnold nerve
- Paragangliome von Kopf und Hals
- Zuckerkandl-Organ
und weiter:
Assoziationen und Differentialdiagnosen zu Paragangliom des Nervus vagus:
