Syringomyelia refers to the cystic cavitation of the spinal cord. Two main forms of syringomyelia have been described: communicating syringomyelia and non communicating syringomyelia. In communicating syringomyelia, there is primary dilatation of the central canaI that is otten associated with ebnotmetiiies at the foramen magnum such as ton sillar herniation (Chiari malformation) and basal arac…