Internal carotid artery dissection presenting with glossopharyngeal nerve dysfunction: A case report.

This case is noteworthy due to the absence of cerebral ischemic findings and the isolated involvement of the glossopharyngeal nerve, likely due to localized anterolateral expansion of the dissection cavity compressing the pharyngeal branch of the nerve. Although mild styloid process elongation was observed, there was no radiological evidence suggesting Eagle syndrome. This case emphasizes the importance of considering ICAD in the differential diagnosis of lower cranial nerve palsies, even in the absence of stroke or typical neurological signs.