Vernet syndrome describes a symptom complex resulting from a lesion of the structures passing through the Foramen jugulare. Vernet syndrome is therefore characterized by unilateral loss of function of the Nervus glossopharyngeus, Nervus vagus, and Nervus accessorius.
Symptoms
The following symptoms may occur in Vernet syndrome[^1]:
Unilateral paralysis of the palatal muscles, vocal cords, sternocleidomastoid muscle, and trapezius muscle
Loss of taste in the posterior third of the tongue
Anesthesia involving the soft palate, larynx, and pharynx
Etiology
Possible causes of Vernet syndrome include, for example[^1]:
Tumors of the jugular foramen
Dissection of the internal carotid artery
Thrombosis of the jugular vein