While the vagus nerve itself can be hard to see, knowledge of the anatomy can be helpful in localization. The vagus nerve travels from the jugular foramen in the carotid sheath between the internal jugular vein (IJ) and internal carotid artery above C4 and between the IJ and common carotid artery (CC) to the root of neck.
The case above shows a T2-hyperintense structure between the IJ and CC at the base of the neck. In this patient with neurofibromatosis, the primary consideration is a vagus nerve neurofibroma.
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