A PRACTICAL APPROACH TO THE DIAGNOSIS OF CEREBELLOPONTINE ANGLE TUMORS

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Abstract
The authors have reviewed petrous ridge tomography and cerebellopontine angle myelography in 50 patients presenting with various symptoms including dizziness, vertigo, unsteady gait, and unilateral hearing loss, in order to ascertain the value of each procedure and to develop a practical approach in diagnosing cerebellopontine angle mass lesions. Petrous ridge tomography is a useful screening procedure which should be used judiciously, since it involves significant irradiation to the eye. In patients with unilateral retrocochlear hearing loss, Pantopaque cerebellopontine angle myelography, which is the definitive procedure, should be performed first.

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