[Surgical technic of the foramen magnum tumors].
D003399:Craniotomy / Q000379:methods*; D005539:Foramen Magnum; D006801:Humans; D007796:Laminectomy / Q000379:methods; D008577:Meningeal Neoplasms / Q000601:surgery; D008579:Meningioma / Q000601:surgery; D012888:Skull Neoplasms / Q000601:surgery*