Fractionated Stereotactic Radiotherapy for the Treatment of Optic Nerve Sheath Meningiomas: Preliminary Observations of 33 Optic Nerves in 30 Patients with Historical Comparison to Observation with or without Prior Surgery

Abstract

To date, this article describes the largest reported series of ONSMs. Although longer follow-up is necessary, we think that CF-SRT represents a safe alternative to surgery and offers a higher likelihood of preserved or improved vision in patients with ONSM. Our analysis suggests that CF-SRT is also preferable to observation. Functional (111)In-octreotide single-photon emission computed tomographic scintigraphy provides a useful technique for the assessment of tumor control that complements serial posttreatment magnetic resonance imaging in patients with ONSMs.