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  • Tissue
  • Early surgical intervention tends to be carried out because after three to four months, fibrosis (replacement with fibrous tissue) occurs in a significant portion of nerve fibers, and after that decompression is not of much value. (wikipedia.org)
  • Unilateral
  • A single or multi-channel unilateral or bilateral cochlear implant is intended to restore a level of auditory sensation to an individual with bilateral severe to profound sensorineural hearing loss by means of electrical stimulation of the auditory nerve. (unicare.com)
  • Facial nerve paralysis is characterised by unilateral facial weakness, with other symptoms including loss of taste, hyperacusis, and decreased salivation and tear secretion. (wikipedia.org)
  • tumor
  • Such damage could be a sign or symptom of an underlying disease such as diabetes mellitus, a brain tumor, a pancoast tumor (apex of lung) and diseases which may cause weakness in muscles or nerve damage, such as myasthenia gravis or oculopharyngeal muscular dystrophy. (wikipedia.org)
  • Prior cranial irradiation is the only risk factor that definitely predisposes to brain tumor formation. (wikipedia.org)
  • Type
  • Reactivation of latent virus within the dorsal root ganglion of the facial nerve is associated with vesicles affecting the ear canal, and termed Ramsay Hunt syndrome type II. (wikipedia.org)
  • In these cases, untreated survival usually amounts to only a few months, and survival with current radiation and chemotherapy treatments may extend that time from around a year to a year and a half, possibly two or more, depending on the patient's condition, immune function, treatments used, and the specific type of malignant brain neoplasm. (wikipedia.org)
  • brain
  • One example is counteracting the dilation of cranial arteries to counteract dangerous vasoconstriction in the brain. (wikipedia.org)
  • That is, the nerve is no longer able to send electrochemical impulses, and hence does not send signals to the brain or from the brain to muscles. (wikipedia.org)
  • compression
  • Specifically, compression or ischemic damage of the mesencephalic tectum, including the superior colliculus adjacent oculomotor (origin of cranial nerve III) and Edinger-Westphal nuclei, causing dysfunction to the motor function of the eye. (wikipedia.org)
  • The facial nerve is a mixed nerve (i.e. containing both sensory and motor nerve fibres) and therefore compression can create sensory (e.g. anesthesia - numbness, or paresthesia - tingling) and motor deficits. (wikipedia.org)
  • There are three main patterns of facial nerve compression. (wikipedia.org)
  • Axonotmesis: wallerian degeneration and necrosis of the distal segment (death of the part of the nerve after the compression). (wikipedia.org)
  • There are several specific causes of facial nerve compression, discussed below. (wikipedia.org)
  • side
  • In this test electrodes are situated over the main trunk and nerve is stimulated until the visual response is seen from the normal side and same is done for the diseased side. (wikipedia.org)
  • In this test increasing electric stimulation to nerve is given until the facial twitch is seen then it is repeated to affected side. (wikipedia.org)
  • page
  • Masticatory muscles Facial nerve Facial Action Coding System Modiolus Illustrated Anatomy of the Head and Neck, Fehrenbach and Herring, Elsevier, 2012, page 89 Kyung Won, PhD. Chung (2005). (wikipedia.org)