PT  - JOURNAL ARTICLE
AU  - K.A. Cauley
AU  - B. Ratkovits
AU  - S.P. Braff
AU  - G. Linnell
TI  - Communicating Hydrocephalus after Gamma Knife Radiosurgery for Vestibular Schwannoma: An MR Imaging Study
AID  - 10.3174/ajnr.A1379
DP  - 2009 May 01
TA  - American Journal of Neuroradiology
PG  - 992--994
VI  - 30
IP  - 5
4099  - http://www.ajnr.org/content/30/5/992.short
4100  - http://www.ajnr.org/content/30/5/992.full
SO  - Am. J. Neuroradiol.2009 May 01; 30
AB  - SUMMARY: Vestibular schwannomas are common, and gamma knife radiosurgery is a treatment option of symptomatic tumors. Hydrocephalus may be a complication of gamma knife treatment of vestibular schwannoma, though the cause-and-effect relationship can be debated because tumors can cause hydrocephalus without treatment. We present an MR imaging study of an unusual case of communicating hydrocephalus after gamma knife radiosurgery of a vestibular schwannoma in which the timeline of events strongly suggests that gamma knife played a contributory role in the development of hydrocephalus. We discuss risk factors for the development of hydrocephalus after radiation therapy and the role of MR CSF cine-flow study in the evaluation of treatment options for hydrocephalus in this setting.