Abstract
A case of syringomyelia associated with tentorial meningioma is reported. A 45-year-old woman was admitted to our institution after experiencing headache and gait disturbance for I year. Neurological examination upon admission revealed bilateral papilledema and left cerebellar signs. MR imaging revealed hydrocephalus secondary to a large tentorial tumor with syringomyelia from the level of C2 to Th7 with tonsillar herniation. The syrinx was collapsed after total resection of the tumor and C1 laminectomy had been performed. We suggest that the pathogenesis of syringomyelia in this patient was interruption of cerebrospinal fluid flow at the foramen magnum following tonsillar herniation and increased intracranial pressure.
