Türk Nöroşirürji Dergisi 2022 , Vol 32 , Num 1
How Should Optic Nerve Sheath Meningiomas Be Treated?
Abidin Murat GEYIK1,Adem DOĞAN2
1Gaziantep Üniversitesi Tıp Fakültesi, Beyin ve Sinir Cerrahisi Kliniği, Gaziantep, Türkiye
2T.C. Sağlık Bakanlığı, Şehitkamil Devlet Hastanesi, Beyin ve Sinir Cerrahisi Kliniği, Gaziantep, Türkiye
Optic nerve sheath meningiomas (ONSMs) are slow-growing, benign tumors that originate from arachnoid cap cells and cause painless vision loss. They are the most common tumors of the optic nerve sheath and constitute 2% of all meningiomas. The most common and most serious clinical finding is painless vision loss. There are two main goals of treatment: the first is to preserve or improve visual function, and the second is to control tumor growth. Treatment modalities include observation, surgery, radiotherapy/ radiosurgery, or a combination of these modalities. During surgical intervention, damage to the vascular structures that supply the optic nerve may occur and vision loss may develop. For this reason, surgery is preferred in cases that may cause vision loss in the other eye and where the possibility of mortality increases due to intracranial spread. Various radiotherapy/radiosurgery modalities are also applied in the treatment. Although the superiority of these modalities to each other has not been proven yet, there are studies showing the effectiveness of radiotherapy in terms of correcting vision loss. With advanced imaging technology, it is aimed to get better results in these patients with earlier diagnosis, more accurate radiotherapy application, and improved case selection for surgical treatment. Anahtar Kelimeler : Optic nerve sheath, Meningioma, Surgery, Radiotherapy