[Trigeminal neuralgia and tumors of the cerebellopontile angle].
In the last 10 years from 1972 to 1981 one hundred patients with trigeminal neuralgia were treated. The routine surgical treatment included Dandy's operation in microsurgical modification. In 8 cases cerebellopontine angle tumours were unexpectedly found, and were accepted as the cause of trigeminal neuralgia. In 8 cases neither clinical examination nor radiological investigations gave any suggestions of a tumour as the cause of neuralgia before the operation, although the tumours had from 1 to 5 cm in diameter. The tumours were: cholesteatoma in 4 cases, acoustic neurinoma in 2 cases, meningioma in 2 cases. After a survey of the pertinent literature the author discusses the clinical differences between supratentorial and infratentorial tumours causing trigeminal neuralgia reaching the conclusion that trigeminal neuralgia may be a sign of mainly posterior fossa tumours, with the exception of trigeminal neurinomas which nearly never produce typical trigeminal neuralgia.
D000328:Adult; D002528:Cerebellar Neoplasms / Q000175:diagnosis*; D002530:Cerebellopontine Angle; D003937:Diagnosis, Differential; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D014277:Trigeminal Neuralgia / Q000175:diagnosis / Q000209:etiology*
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