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Published on: May 10, 2017
Gamma-knife radiosurgery in the treatment of trigeminal schwannomas
1Gamma Knife Radiosurgery Unit, Department of Neurosurgery, Acibadem Kozyatagi Hospital, Istanbul, Turkey. peker@atlas.net.tr
Background:
Trigeminal nerve schwannomas account for 0.07%-0.28% of all intracranial tumours. Advances in skull base surgery have led to more aggressive resection of these tumours, but surgery may associated with development of new neurological deficits.
Methods:
In this report, we analyse the long-term results 15 patients with newly diagnosed or residual/recurrent trigeminal schwannoma who underwent gamma-knife treatment.
Findings:
During a mean 61 months of follow-up, MRI revealed reduction of tumour size in 13 and no size change in 2 patients. The tumour growth control rate was 100% and only 1 patient had transient facial numbness and diplopia.
Conclusions:
For patients with small to moderate size trigeminal schwannomas, gamma-knife radiosurgery is associated with good tumour control and a minimal risk of adverse radiation effects.
