J Neurosurg Sci
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In four cases with trigeminal neuralgia an intracranial neoplasm was detected. In the first two cases a meningioma of the cerebellopontine angle was producing symptomatic trigeminal neuralgia almost identical to the essential one. ⋯ In all four cases associated sensory trigeminal deficits were present. The causative factors which may produce symptomatic trigeminal neuralgia are especially discussed in this paper.