Management of primary optic nerve sheath meningiomas: presentation of a new classification system

Uta Schick & Werner Hassler
Introduction The management of optic nerve sheath meningiomas (ONSM) remains controversial, but includes surgery, radiotherapy and plain observation. A new classification system based on the tumor location and extent is provided to clarify the possible manifestations of ONSM. Treatment modalities[for full text, please go to the a.m. URL]