Anterior sacral meningocele: report of five cases and review of the literature.

Five new cases of anterior sacral meningocele are presented, including one secondary to neurofibromatosis, a previously undescribed association. The literature is reviewed, drawing attention to the relationship between anterior sacral meningocele, sacral dysgenesis, and other congenital anomalies. Special consideration is given to the clinical features of this entity, as well as to the techniques and results of surgical management.