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Occipital neuralgia is caused by damage to the occipital nerves, which can arise from trauma (usually concussive or cervical), physical stress on the nerve, repetitive neck contraction, flexion or extension, and/or as a result of medical complications (such as osteochondroma, a benign bone tumour).
Lesions can be due to occipital cortical dysplasia, which can be difficult to identify and diagnose based on an MRI. Most commonly, the disorder is due to idiopathic occipital epilepsies in childhood, and other rare syndromes affecting the occipital area is Sturge-Weber syndrome, adult forms of Rasmussen's syndrome, and more. [8]
Subsequently, numbness of the tongue is due to either subluxation of the atlanto-axial joint or restriction of the second cervical nerve. [2] The cervical vertebrae are indicated in red. The second cervical nerve is thought to be involved in Neck-Tongue syndrome.
This typically causes impaired nerve function, increased pressure within the skull, and can eventually lead to direct compression of brain tissue and blood vessels. [1] Symptoms vary based on the location and extent of edema and generally include headaches , nausea, vomiting, seizures, drowsiness, visual disturbances, dizziness, and in severe ...
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Therapies acting on the vagus nerve (cranial nerve X) and the greater occipital nerve have both shown efficacy in managing cluster headache, but the specific roles of these nerves are not well-understood. [6] Two nerves thought to play an important role in cluster headaches include the trigeminal nerve and the facial nerve. [30]