Question

What is the syndrome associated with the glossopharyngeal nerve?

Answer 1

The syndrome that is associated with the glossopharyngeal nerve is Weisenberg syndrome, also glossopharyngeal neuralgia.

The glossopharyngeal neuralgia or Weisenberg syndrome is a rare and often debilitating, neurovascular compression syndrome, which causes severe and sporadic and sharp pain in the areas that are innervated by the ninth cranial nerve.

The key symptoms and key features of glossopharyngeal neuralgia are excruciating, stabbing or shock like pain that often occurs unilaterally in your throat, tonsillar area, base of your tongue and deep in your ear.

The attacks with glossopharyngeal neuralgia are often triggered by simple and daily actions like swallowing, especially swallowing cold liquids, chewing, coughing, talking, sneezing or yawning.

The causes of glossopharyngeal neuralgia are often vascular compression, which is when a blood vessel, like an artery or vein, presses against the nerve near your brainstem.

Structural lesions like tumors at the base of your skull, or cerebellopontine angle, infections or demyelinating diseases like multiple sclerosis and even eagle syndrome, which is an elongated styloid process or calcified stylohyoid ligament compressing the nerve.

If there is damage to the glossopharyngeal nerve, it results in difficulty swallowing also known as dysphagia as well as loss of taste or a bitter and or sour taste on the posterior third of your tongue and a reduced sensation in your palate/pharynx as well as an absent gag reflex and reduced salivation.

Damage to the glossopharyngeal nerve can also cause severe pain or neuralgia in your ear, throat or even tongue.

The common symptoms of damage to the glossopharyngeal nerve are dysphagia or difficulty swallowing, which can result in food getting stuck in your throat.

Loss of taste and loss of sensation on the posterior one third of your tongue and palate.

Decreased or absent sensation on your throat, palate and posterior tongue.

Diminished or absent gag reflex

Reduced saliva production, which leads to dry mouth.

And rare cases of a glossopharyngeal nerve being damaged can lead to neuralgia, which results in intense, stabbing pain in your throat, tongue or ear also known as glossopharyngeal neuralgia.

And your uvula might deviate to the side opposite the injury with glossopharyngeal nerve damage.

These symptoms of glossopharyngeal nerve damage often result from injury during procedures such as tonsillectomies or even from compression of the nerve by blood vessels or tumors pressing on the nerves or blood vessels.

The way glossopharyngeal nerve damage is treated through antiseizure medications like carbamazepine.

And antidepressants can help some people and in severe cases, when the pain with glossopharyngeal nerve damage is difficult to treat, surgery may be needed to take the pressure off the glossopharyngeal nerve.

The surgery for glossopharyngeal nerve damage to relieve the pressure off the glossopharyngeal nerve is called microvascular decompression surgery.

The glossopharyngeal nerve can sometimes regenerate through holes in the sieves.

In studies axons of the glossopharyngeal nerve regenerated through holes in the sieves and supported the functional regeneration of taste, thermal and mechanoreceptors.