Stephen J. Schueler, M.D.

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Acoustic Nerve Tumor Evaluation

The evaluation of an acoustic neuroma begins with a history and physical examination.

The physical examination in someone with an acoustic neuroma is usually normal.

Testing is required to make the diagnosis of an acoustic neuroma.

Tests that may be used to make the diagnosis of an acoustic neuroma include:

  • Caloric stimulation testing:
    • Warm and cold water is introduced into the ear canal
    • Should trigger rapid side-to-side eye movements
    • Eye movements should be similar on both sides to be normal
  • Electronystagmography
  • Brain CT scanning
  • Brain MRI scanning
  • Auditory evoked potentials
  • Brain biopsy:
    • Important in order to determine the type of cells causing the tumor.
    • A neurosurgeon can often remove a small sample of brain tissue through a small hole in the skull.
    • The tissue will then be examined under a microscope.

Continue to Acoustic Nerve Tumor Treatment

Last Updated: Nov 9, 2010 References
Authors: Stephen J. Schueler, MD; John H. Beckett, MD; D. Scott Gettings, MD
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PubMed Acoustic Nerve Tumor References
  1. Flint D, Fagan P, Panarese A. Conservative management of sporadic unilateral acoustic neuromas. J Laryngol Otol. 2005 Jun;119(6):424-8. [15992466]
  2. Lemajic-Komazec S, Komazec Z. Initial evaluation of vertigo. Med Pregl. 2006 Nov-Dec;59(11-12):585-90. [17633903]
  3. Lin D, Hegarty JL, Fischbein NJ, Jackler RK. The prevalence of "incidental" acoustic neuroma. Arch Otolaryngol Head Neck Surg. 2005 Mar;131(3):241-4. [15781765]
  4. Myrseth E, Pedersen PH, Moller P, Lund-Johansen M. Treatment of vestibular schwannomas. Why, when and how? Acta Neurochir (Wien). 2007;149(7):647-60; discussion 660. Epub 2007 Jun 11. [17558460]
  5. Pogodzinski MS, Harner SG, Link MJ. Patient choice in treatment of vestibular schwannoma. Otolaryngol Head Neck Surg. 2004 May;130(5):611-6. [15138429]
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