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7 lis 2022 · The hypoglossal nerve can be damaged at the hypoglossal nucleus (nuclear), above the hypoglossal nucleus (supranuclear), or interrupted at the motor axons (infranuclear). Such damage causes paralysis, fasciculations (as noted by a scalloped appearance of the tongue), and eventual atrophy of the tongue muscles.
14 sie 2024 · Hypoglossal nerve damage symptoms. If you have hypoglossal nerve damage, your tongue weakens on the side that’s affected. It will eventually waste away (atrophy), leading to paralysis of your tongue. Because of this, you may have trouble swallowing, chewing and/or speaking.
10 wrz 2024 · Damage to the hypoglossal nerve is a relatively uncommon cranial nerve palsy. Possible causes include head & neck malignancy and penetrating traumatic injuries. If the symptoms are accompanied by acute pain, a possible cause may be dissection of the internal carotid artery.
20 maj 2024 · Clinical aspects. Penetrating injuries to the neck, and various lesions of the skull base may also affect the nucleus of the hypoglossal nerve. An injury of the nerve manifests as flaccid paralysis and atrophy of the ipsilateral muscles of the tongue followed with speech impairment.
Keywords: compression, hypoglossal nerve, iatrogenic, internal carotid artery, neuropathy, palsy, paralysis. 1. Introduction 1.1. Anatomy. The hypoglossal nerve (HN) is the twelfth cranial nerve. Its rootlets arise from the medulla oblongata medially in the ventrolateral sulcus and descend laterally behind the vertebral artery (VA).
The hypoglossal nerve, also known as the twelfth cranial nerve, cranial nerve XII, or simply CN XII, is a cranial nerve that innervates all the extrinsic and intrinsic muscles of the tongue except for the palatoglossus, which is innervated by the vagus nerve.
11 lut 2024 · Lesions located in the cranial nerve nuclei or fascicular segments of the cranial nerves will cause related CN symptoms. The trigeminal nerve is the most frequently involved CN and trigeminal neuralgia (TN) is the most frequent symptom (Fig. 12.2b). Patients with MS have a 20-fold increased risk in developing TN, and it affects 1.9–4.9% of MS ...