{"id":353,"date":"2024-07-11T20:21:16","date_gmt":"2024-07-11T18:21:16","guid":{"rendered":"https:\/\/www.benech-neurochirurgia.it\/?page_id=353"},"modified":"2024-09-01T21:48:12","modified_gmt":"2024-09-01T19:48:12","slug":"acoustic-neuroma","status":"publish","type":"page","link":"https:\/\/www.benech-neurochirurgia.it\/en\/areas-of-expertise\/acoustic-neuroma\/","title":{"rendered":"Acoustic Neuroma"},"content":{"rendered":"\n
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Treated conditions<\/p>\n<\/div>\n<\/div><\/div>\n\n\n\n

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Home<\/a>  \u00bb Areas of expertise<\/a>  \u00bb Acoustic Neuroma<\/p>\n<\/div>\n\n\n\n

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Definition and Etiology<\/a><\/h2>\n<\/div>\n\n\n\n
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Symptoms<\/a><\/p>\n<\/div>\n\n\n\n

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Diagnosis<\/a><\/p>\n<\/div>\n\n\n\n

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Treatment<\/a><\/p>\n<\/div>\n<\/div>\n<\/div>\n\n\n\n

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Treated conditions<\/p>\n\n\n\n

Acoustic Neuroma<\/h1>\n\n\n\n

The acoustic neuroma (or vestibular Schwannoma) is a benign slow-growing tumor originating from the Schwann cells of the vestibular nerve in the internal auditory meatus from where it spreads to the cerebellopontine angle.<\/p>\n\n\n\n

It represents 7-8% of all intracranial tumors.<\/p>\n\n\n\n

95% of acoustic neuromas are unilateral, but in cases of type 1 or type 2 neurofibromatosis, it may be bilateral or associated with other lesions.<\/p>\n\n\n\n

Symptoms<\/h2>\n\n\n\n

Due to the location of the tumor, the initial symptoms are caused by the compression of the acoustic-vestibular nerve and include:<\/p>\n\n\n\n

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  • progressive loss of hearing<\/li>\n\n\n\n
  • tinnitus<\/li>\n\n\n\n
  • dizziness<\/li>\n\n\n\n
  • balance disorders<\/li>\n<\/ul>\n\n\n\n

    When the tumor increases in size and starts to occupy the cerebello-pontine angle, consequently compressing other cranial nerves (such as the trigeminal and facial ones), the cerebellum, and the brainstem, other symptoms may arise, such as:<\/p>\n\n\n\n

      \n
    • headache<\/li>\n\n\n\n
    • facial paraesthesia (sensory disorder or numbness) <\/li>\n\n\n\n
    • facial paresis (muscle disorders)<\/li>\n\n\n\n
    • diplopia (double vision)<\/li>\n\n\n\n
    • ataxia (coordination disorder)<\/li>\n\n\n\n
    • dysmetria (alteration of the measure of voluntary movements)<\/li>\n\n\n\n
    • nausea<\/li>\n\n\n\n
    • vomiting<\/li>\n<\/ul>\n\n\n\n

      Should the neuroma reach a significant size, it may hinder the free circulation of fluids and lead to hydrocephalus as well as to an increase in intracranial pressure.<\/p>\n\n\n\n

      Diagnosis<\/h2>\n\n\n\n

      Diagnosis can be reached by means of brain MRI in which the lesions appear rounded and contrast-enhanced. A brain CT can complement the diagnosis to assess the expansion of the internal auditory meatus.<\/p>\n\n\n\n

      It is important to complete the diagnosis with functional tests to assess hearing (audiometric testing) and the functionality of the facial nerve (House-Brackmann Classification).<\/p>\n\n\n\n

      These tests are also useful for a later comparison between the pre- and post-operative patient status. <\/p>\n\n\n\n

      Treatment<\/h2>\n\n\n\n

      A small and asymptomatic neuroma does not need immediate intervention and can be kept under control with radiological follow-ups.<\/p>\n\n\n\n

      In general, microsurgical procedures are performed on tumors with a diameter of more than 3 cm or a smaller diameter in young patients with unimpaired hearing.<\/p>\n\n\n\n

      The possibility of preserving hearing and the integrity of the facial nerve depends on the size of the tumor.<\/p>\n\n\n\n

      An alternative therapeutic option to surgery is stereotactic radiosurgery (Gamma-Knife), where a beam of radiation is directed to the tumor. It does not require any invasive maneuver and implies only a minor risk of damaging the neural structures.<\/p>\n\n\n\n

      Radiosurgery is indicated for tumors smaller than 3 cm in diameter and\/or for patients with a high anaesthetic risk. It may also be used to treat possible residual tumor of large-size neuromas in case of partial surgical resection in order to preserve the facial nerve.<\/p>\n\n\n\n

      The acoustic neuroma is a benign slow growing tumor. Therefore, total removal is curative in most cases.<\/p>\n<\/div>\n<\/div>\n\n\n\n

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      The acoustic neuroma is a benign slow-growing tumor originating from the vestibular nerve in the internal auditory meatus. As you can see, it can reach a considerable size<\/figcaption><\/figure>\n<\/div>\n\n\n\n
      <\/div>\n<\/div>\n<\/div>\n","protected":false},"excerpt":{"rendered":"

      Home  \u00bb Areas of expertise  \u00bb Acoustic Neuroma Definition and Etiology Symptoms Diagnosis Treatment Treated conditions Acoustic Neuroma The acoustic neuroma (or vestibular Schwannoma) is a benign slow-growing tumor originating from the Schwann cells of the vestibular nerve in the internal auditory meatus from where it spreads to the cerebellopontine angle. It represents 7-8% of all intracranial […]<\/p>\n","protected":false},"author":1,"featured_media":0,"parent":342,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"","meta":{"_acf_changed":false,"footnotes":""},"class_list":["post-353","page","type-page","status-publish","hentry"],"acf":[],"yoast_head":"\nAcoustic Neuroma - Benech Neurochirurgia<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.benech-neurochirurgia.it\/en\/areas-of-expertise\/acoustic-neuroma\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Acoustic Neuroma - Benech Neurochirurgia\" \/>\n<meta property=\"og:description\" content=\"Home  \u00bb Areas of expertise  \u00bb Acoustic Neuroma Definition and Etiology Symptoms Diagnosis Treatment Treated conditions Acoustic Neuroma The acoustic neuroma (or vestibular Schwannoma) is a benign slow-growing tumor originating from the Schwann cells of the vestibular nerve in the internal auditory meatus from where it spreads to the cerebellopontine angle. 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