Acoustic neuroma secondary prevention

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Editor-In-Chief: C. Michael Gibson, M.S., M.D. [1]Associate Editor(s)-in-Chief: Simrat Sarai, M.D. [2]


Secondary prevention strategies following acoustic neuroma treatment include follow-up MRI scans.

Secondary Prevention

The approach for follow-up studies after treatment and diagnosis is uncertain and there is not enough data to support specific recommendations. Due to the potentially slow growth of acoustic neuroma, prolonged follow-up is necessary.[1]

  • Patients being managed with observation and with no tumor growth should be scanned yearly for 10 years and then every 3 - 5 years. Audiometry should also be performed on a regular basis.[2]
  • A follow-up MRI is performed within 6 - 12 months after surgical excision to document complete tumor removal.
  • Follow-up MRI should be obtained at 5 years and at 10 years, assuming complete tumor removal.
  • If the findings on the 10-year follow-up MRI scan are normal, further imaging should be performed only if clinical circumstances require it.
  • Patients treated with radiotherapy and with no tumor growth should be scanned yearly for 10 years and then every 2 years


  1. Jing Zou & Timo Hirvonen (2017). ""Wait and scan" management of patients with vestibular schwannoma and the relevance of non-contrast MRI in the follow-up". Journal of otology. 12 (4): 174–184. doi:10.1016/j.joto.2017.08.002. PMID 29937853. Unknown parameter |month= ignored (help)
  2. Ian F. Dunn, Wenya Linda Bi, Srinivasan Mukundan, Bradley N. Delman, John Parish, Tyler Atkins, Anthony L. Asher & Jeffrey J. Olson (2018). "Congress of Neurological Surgeons Systematic Review and Evidence-Based Guidelines on the Role of Imaging in the Diagnosis and Management of Patients With Vestibular Schwannomas". Neurosurgery. 82 (2): E32–E34. doi:10.1093/neuros/nyx510. PMID 29309686. Unknown parameter |month= ignored (help)

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