Diastematomyelia--rare and unusual features.

Diastematomyelia is an uncommon congenital anomaly of the spine. Four unusual variations of diastematomyelia are presented. These include (1) double diastematomyelia, (2) adult presentation, (3) diastermatomyelia without a septum and unusual termination of two halves of the spinal cord, and (4) recurrence of a fibrous band following removal of an osseous septum.