Efficacy and Safety of Proton Beam Therapy for Primary Optic Nerve Sheath Meningioma.

Purpose: Management of optic nerve sheath meningiomas (ONSM) remains challenging. Photon radiation therapy (PhRT) is the most common treatment for sight-threatening ONSM. Proton beam therapy (PBT) is less commonly used because it is more expensive and because there are questions about its efficacy specifically in relation to ONSM.

Microsurgical Transcranial Approach of 112 Paraoptic Meningiomas: A Single-Center Case Series.

Background: Predictors of visual outcomes after optic nerve decompression are controversial.

Objective: To identify the predictors of poor visual outcomes after surgery of meningiomas responsible of a compressive optic neuropathy.

Methods: We focused on paraoptic meningiomas (POMs), which gathered tuberculum sellae meningiomas (TSMs) and anterior clinoid meningiomas (ACMs) responsible for visual impairment or threatening visual function, that underwent surgery at our institution between January 2009 and December 2015 and analyzed the clinical and radiological findings of our patients.

Endovascular treatment of posterior fossa arteriovenous malformations.

Infratentorial arteriovenous malformations (AVM) are rare, representing only 7-15% of cerebral AVM. The concentration of eloquent neurological structures and the high rate of bleeding presentation of AVM in this location complicate the management of such lesions. New therapeutic options, especially in endovascular therapy, have fundamentally modified the treatment strategy and also the outcome of posterior fossa AVM.

[Results of fractionated targeted proton beam therapy in the treatment of primary optic nerve sheath meningioma].

Introduction: Optic nerve sheath meningioma (ONSM) is a common benign neoplasm arising from the arachnoid tissue encapsulating the optic nerve and affects mainly middle aged women. It is a slow-growing tumor for which there is still no consensus on treatment.

Purpose: To evaluate the safety and efficacy of fractionated targeted proton beam therapy (PBT) in the treatment of ONSM and to define its role in the treatment of these tumors.