Spinal meningeal malformations in children (without meningoceles or meningomyeloceles).

Multiple meningeal malformations are described: anterior or lateral meningoceles, extradural meningeal cysts, and intradural arachnoid cysts. All diverticulae appear to be extensions of the subarachnoid space, producing symptoms early or later. It is impossible to unify all these lesions because they cause multiple pathological conditions, depending upon the anatomical form or level, other systemic malformations, spinal abnormalities, or associated familial diseases. Surgical treatment requires complete evaluation of each anatomical aspect before procedure.