Foramen magnum meningioma: transoral resection with a bone baffle to prevent CSF leakage. Case report

A case of meningioma situated at the anterior rim of the foramen magnum with successful removal via a transoral approach is reported. A new technique of preventing cerebrospinal fluid leakage is described utilizing fascia lata and a bone baffle without any attempt to close the dura, either by primary suture or tissue sealants.