A 48-YEAR-OLD WOMAN with congenital mirror movements of the hands pres
ented with a high cervical split spinal cord malformation and a ventra
lly located neurenteric cyst. The clinical, radiological, and surgical
features are presented. A brief discussion of the literature and embr
yology pertaining to split cord malformations and mirror movements is
included. To our knowledge, this is the first case of radiographically
and surgically proven split cord malformation associated with either
mirror movements or a neurenteric cyst presenting in an adult.