Symptomatic meningeal diverticula of the sacral nerve roots in a girl. A case report.

The rare case of a 12-year-old girl with sciatic pain and bilateral meningeal diverticula of S1 and S2 nerve roots on both sides, is reported. Meningeal diverticula are a rare cause of sciatic pain and are exceptional in infants and children. Water-soluble myelography shows a rapid and complete opacification of the diverticulum, because of its large communication with the subarachnoid space; computerized tomography and magnetic resonance show an aspecific CSF collection, similar to all nerve root cysts. The complete removal of the cyst wall, with closure of its pedicle, results in the clinical remission in symptomatic cases.