[Cruciate hemiplegia associated with basilar impression, Arnold-Chiari malformation and syringomyelia. Case report]. / Hemiplegia cruzada associada a impressão basilar, malformação de Arnold-Chiari e siringomielia. Relato de caso.

The authors report a case of cruciate hemiplegia associated with basilar impression, Chiari malformation and syringomyelia. The neuroanatomical controversy, the surgical treatment and the good outcome of the patient are discussed.