Cerebellopontine Angle Neoplasms

3.5.1 List the differential diagnosis of cerebellopontine angle (CPA) mass.

3.5.2 Discuss the natural history of vestibular schwannoma. Is "Wait-and-Scan" a reasonable management choice? How many patients will eventually need treatment?

Battaglia A, Mastrodimos B, Cueva R. Comparison of growth patterns of acoustic neuromas with and without radiosurgery. Otol Neurotol. 2006 Aug;27(5):705-12. PMID:16868519

3.5.3 Tell us about acoustic neuromas (AN) in neurofibromatosis.

3.5.4 Discuss the histopathology of AN’s.

3.5.5 Describe audiogram and ABR findings in CPA lesions.

3.5.6 In the age of MRI, is there a role for ABR in the diagnosis of AN’s?

Cueva RA. Auditory brainstem response versus magnetic resonance imaging for the evaluation of asymmetric sensorineural hearing loss. Laryngoscope. 2004 Oct;114(10):1686-92. PMID:15454755

3.5.7 Differentiate the radiologic features of AN vs. meningioma vs. epidermoid vs. arachnoid cyst.

3.5.8 Discuss translabyrinth, retrosigmoid and middle fossa approaches-indications, advantages and disadvantages of each.

3.5.9 How do patients fare after AN surgery?

da Cruz MJ, Moffat DA, Hardy DG. Postoperative quality of life in vestibular schwannoma patients measured by the SF36 Health Questionnaire. Laryngoscope. 2000 Jan;110(1):151-5. PMID:10646732

3.5.10 Discuss the role radiotherapy in mgmt of AN’s. What are the advantages? What are the disadvantages?

Battista RA. Gamma knife radiosurgery for vestibular schwannoma. Otolaryngol Clin North Am. 2009 Aug;42(4):635-54. PMID:19751869

3.5.11 Discuss the management of NF2 patients.