Spinal dural arteriovenous fistula associated with syringomyelia

The previously undescribed association of a spinal dural arteriovenous fist ula with syringomyelia was found in a 60-year-old male, who developed incre asing paresis, numbness of both lower extremities and sphincteric dysfuncti on. Symptoms and signs were attributed to a syringomyelia at T5-L1 and an a rteriovenous spinal dural fistula at L1. The fistula was successfully immob ilised with N-butyl-cyano-acrylate. Six months after the procedure, all abn ormalities had nearly disappeared. Whether the relation between the fistula and the syringomyelia was coincidental or causative could not be determine d.