ABSTRACT
Schwannomas of the vagus nerve (SVN) and schwannomas of the cervical sympathetic nerve (SSN) are the two most common schwannomas in the carotid space. Because schwannomas are asymptomatic, moreover, the vagus nerve and the cervical sympathetic nerve have adjacent anatomical location, it is diffcult to differentiate SVN or SSN. In addition, the current surgical treatment of schwannomas still remains controversial. This article summarized the studies on SVN and SSN, and meanwhile discussed the advances in the diagnosis and management of the disease.
ABSTRACT
The isolated hypoglossal nerve palsy is less frequently seen, but occasionally it appears as the initial or solitary sign of an intracranial or extracranial space-occupying lesion or a vascular abnormality of the internal carotid artery. We present a 55-year-old woman with isolated hypoglossal nerve palsy due to an oropharyngeal carotid space mass.